Any idea that online chess is less competitive than the over-the-board equivalent was dispelled by the fourth round of the Dyfed Closed Online tournament, played between Monday 25th and Wednesday 27th January. (The online format allows this kind of flexibility.) Aberystwyth's players were involved in some exceptionally exciting games. In a Scandinavian with players castled on opposite sides Adam Watkin-Jones got his kingside attack going faster than that of Gareth Williams on the queenside, and Black was forced to defend. But with only a couple of minutes left on the clock, Adam wasn't able to calculate the winning sacrifice and settled for a draw. I had prepared for 1...e5 against Robert Lovegrove, and played weakly against his unexpected Sicilian, coming out of the opening with a much worse position. However, in his anxiety to finish me off quickly, he let me back in with a sequence that won me the exchange, after which the ending was no problem. Tom Gunn found himself with a knight against a bishop in the ending for the second week in a row, after a Nimzo-Indian. At the crucial moment he missed the chance to push his passed pawn and Joshua Brewer's pawns overwhelmed him. Rudy van Kemenade was in some trouble with his Petroff against the much-lower-rated Ray Greenwood. Losing his queen was not the worst thing that could have happened, because the resultant complications suited his style and greater experience, and he managed to turn the tables. Sam Holman played a razor-sharp line of the Austrian Attack against David Pinch's Pirc Defence. When the initial attacks on both sides had come to a halt, Black had a material advantage but there were still chances for both players. The game continued with all sorts of twists and turns, till Sam was able to stop Black's connected passed pawns with his king and bishop. With one round to go, I am on 3/4, Adam on 2½, Rudy on 2 and Tom and Sam on 1½, while the tournament's strongest player, Howard Williams, has a maximum 4.
Saturday, 30 January 2021
Friday, 22 January 2021
Tales of the Unexpected
Online chess is providing some unexpected results in the Dyfed Online Closed tournament, which reached its third round on Tuesday 19th January. Adam Watkin-Jones, who suffered an upset in the first round, played confidently against the much lower-rated Gwyn Evans on this occasion, however. White's King's Indian Attack had not made enough progress to justify a piece sacrifice, and Adam had the initiative as well as the extra material, keeping control throughout. Rudy van Kemenade, on the other hand, a multiple winner of the over-the-board version of the tournament, had another bad result after his defeat last week. Joshua Brewer's kingside looked vulnerable in an Italian Game, but Rudy's decision to exchange queens proved fatal when it left his knight with no escape. I had a second online win in recent weeks against the higher-rated David Pinch. I emerged from my Stonewall Dutch opening with a strong centre and the better chances, and when White dropped a pawn I was able to roll my own pawn centre forward for the win. Sam Holman was unlucky against Gareth Williams. A Dutch Staunton Gambit produced a double-edged position with queens and opposite-coloured bishops which ended abruptly when White set up an inescapable mating net. But Tom Gunn caused another upset against Paul Orton, winning a pawn in a queen's pawn game. Black should have gone for the opposite-coloured bishop ending, which was drawn, but the decision to choose bishop against knight instead cost him the game. After three rounds, Adam and I have 2, Tom has 1½ and Rudy and Sam have 1.
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.3"]
[White "Evans, Gwyn"]
[Black "Watkin-Jones, Adam"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1192"]
[BlackElo "1918"]
[Annotator "kemen"]
[PlyCount "122"]
[EventDate "2021.??.??"]
{[%evp 0,122,80,9,10,-34,-12,1,31,4,1,2,2,2,15,-15,-9,-45,-30,-43,-14,-42,-88,
-88,-134,-137,-132,-141,-147,-147,-135,-133,-155,-224,-163,-209,-278,-274,-271,
-282,-283,-240,-257,-297,-312,-335,-244,-337,-314,-480,-491,-471,-405,-407,
-294,-728,-687,-687,-724,-724,-365,-356,-356,-354,-340,-371,-369,-429,-444,
-1050,-332,-338,-311,-311,-314,-404,-405,-493,-585,-585,-593,-599,-359,-359,
-330,-389,-331,-328,-333,-349,-352,-365,-408,-441,-406,-474,-469,-521,-533,
-552,-585,-1095,-1401,-1674,-1710,-2138,-2660,-29971,-1559,-29977,-1148,-1303,
-1412,-1493,-1499,-1497,-1458,-1664,-1854,-2089,-2676,-28449,-28134,-2698,
-29984]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. d3 Nbd7 (4... Bg4 {main}) 5. O-O e5
6. Nbd2 Be7 (6... Bd6) 7. h3 (7. e4 {main idea in this King's Indian Reversed,
yields Wh 66 % in 78 games. In this game Wh does not claim enough of the
centre, so his pieces end up in each other's way}) 7... O-O 8. Nh4 $146 (8. e4
$11 {3 draws}) 8... Re8 $15 9. Ndf3 Bf8 $17 (9... e4 $17 {Stockfish12}) 10. Bg5
h6 $19 11. Bd2 Nb6 (11... e4 12. Nd4 c5 13. Ndf5 g5 $19 {Stockfish12}) 12. Qc1
g5 13. Nxg5 hxg5 14. Bxg5 Bg7 (14... Qd6 $19 {looks simplest}) 15. Bh6 Nh7 (
15... Nh5) 16. Bd2 e4 {in what follows Bl is able to make use of the open
spaces that Wh has created around the Bl K side} (16... Bf6 17. Nf3 Bf5 $19 {
Stockfish12}) 17. c3 Bf6 18. dxe4 Bxh4 19. gxh4 Qxh4 $19 20. Kh2 dxe4 {Wh has
no presence in the centre at all & his pieces are passive} 21. Be3 Bf5 (21...
Nd5) 22. Rg1 Bg6 (22... Kh8 {prepares to have the Bl pieces invade via the g
file}) 23. Qc2 Nd5 24. Raf1 Nhf6 25. Bh1 Re5 26. Rg3 Rh5 27. Rfg1 Ng4+ 28. Kg2
Ngxe3+ 29. fxe3 Rg5 (29... Nxe3+ $1 {Stockfish12- finishes things off quicker}
30. Rxe3 Rg5+ 31. Kh2 Rxg1 32. Kxg1 Qg5+ 33. Kf2 Qf4+ 34. Kg2 Qxe3 {and Bl is
a R up with all Wh's pieces looking helpless}) 30. Kh2 Rxg3 31. Rxg3 Re8 (31...
Kh7) 32. Qc1 Re5 33. Bg2 Rg5 34. Qe1 Rxg3 (34... Nxe3 {Stockfish12- is even
better}) 35. Qxg3 Qxg3+ 36. Kxg3 Nxe3 (36... b5) 37. Bh1 (37. Bxe4 Bxe4 38. Kf4
{but Wh remains a piece down}) 37... Nd1 38. Kg4 {an error but it doesn't
really matter much at this point} Nf2+ 39. Kg3 Nxh1+ 40. Kg2 Kg7 41. Kxh1 Kh6
42. Kh2 Kh5 43. Kg3 f5 44. e3 Bf7 45. b3 Kg5 46. c4 a5 47. a3 a4 48. bxa4 Bxc4
49. a5 Be2 50. h4+ Kf6 51. Kf4 c5 {quickest} 52. Kg3 c4 53. Kf2 Bd3 (53... Bh5)
54. Ke1 Kg6 (54... c3) (54... f4) 55. Kd2 Kh5 56. a4 Kxh4 57. Kc3 Kg3 58. Kb4
f4 59. exf4 Kxf4 60. Kb5 c3+ 61. Kb6 Ba6 0-1
[Event "Dyfed Online Closed Lichess"]
[Site "?"]
[Date "2021.01.19"]
[Round "3.4"]
[White "Van Kemenade, R."]
[Black "Brewer, Joshua"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1999"]
[BlackElo "1481"]
[Annotator "kemen"]
[PlyCount "110"]
[EventDate "2021.01.20"]
[TimeControl "2700+15"]
{[%evp 0,110,23,11,42,6,17,24,48,29,81,-20,-1,1,4,8,-1,-1,14,0,31,51,47,43,43,
49,85,83,127,124,84,112,225,109,176,209,211,220,186,191,167,201,212,180,402,
197,202,188,191,143,148,-92,-88,-85,-105,-116,-116,-198,-199,-199,-211,-242,
-215,-252,-235,-344,-332,-423,-402,-409,-406,-459,-462,-481,-508,-690,-397,
-405,-383,-525,-486,-564,-596,-682,-596,-695,-408,-432,-458,-589,-763,-762,
-388,-503,-534,-522,-558,-607,-348,-348,-341,-848,-893,-915,-902,-916,-921,
-942,-942,-962,-962,-1083,-1224]} 1. e4 Nc6 2. Nf3 e5 3. Bc4 {C50 Italian Game}
d6 4. c3 Nf6 $6 {(0.36 ? 1.12) Inaccuracy. f5 was best.} (4... f5 5. d3 f4 6.
b4 Qf6 7. Qb3 Nh6 8. d4 Nf7 9. Nbd2) (4... Bg4 {main line-R}) (4... Be7 {
main line-R}) 5. d3 $6 {(1.12 ? 0.48) Inaccuracy. Ng5 was best.} (5. Ng5 {
considered by Wh -R} d5 6. exd5 Na5 (6... Nxd5 7. d4 (7. Qf3 Qxg5 8. Bxd5 Qg6)
7... Be7 8. Nxf7) 7. Qa4+ Nd7 8. Nxf7 Qh4 9. Nxe5 Bd6) 5... h6 (5... Be7) 6.
O-O a6 (6... g6 {found in GM games-R}) 7. a4 (7. Bb3 {main-R}) 7... Be7 $6 {
(0.25 ? 0.77) Inaccuracy. g5 was best.} (7... g5 8. Bb3 Bg7 9. Nbd2 g4 10. Ne1
O-O 11. g3 d5 12. Ng2) 8. Re1 (8. h3) (8. Nbd2 {have been played-R}) 8... Bd7 {
perhaps this blocks things in a bit, 0-0 is simpler-R} 9. d4 exd4 (9... Bg4 $5)
10. cxd4 O-O 11. h3 Na5 $6 {(0.86 ? 1.44) Inaccuracy. Nb4 was best.} (11... Nb4
12. Bd2 $14) 12. Ba2 b5 $6 {(1.20 ? 2.06) Inaccuracy. c5 was best.} (12... c5
13. Nc3 cxd4 14. Nxd4 Rc8 15. Qd3 Nc6 16. Nxc6 Rxc6 17. Qg3 Kh8 18. Rd1 Be6 19.
Be3 $11 {lichess analysis} (19. e5 $16 {Stockfish12-R})) 13. Nc3 $6 {(2.06 ? 0.
97) Inaccuracy. e5 was best.} (13. e5 dxe5) 13... c6 $4 {(0.97 ? 3.89) Blunder.
b4 was best.} (13... b4 14. Nd5 Nxd5 15. Bxd5 c6 16. Ba2 $16 {Stockfish12- R})
14. e5 $18 dxe5 15. dxe5 Ne8 16. Qe2 $6 {(4.27 ? 2.94) Inaccuracy. axb5 was
best.} (16. axb5 axb5 17. Qc2 b4 18. Bb1 g6 19. e6 Bxe6 20. Rxe6 Bf6 21. Bxh6
bxc3 22. b4 Nb7 23. Rxa8 Qxa8 24. Ba2 $18 {Stockfish12-R}) (16. Qc2 Nc7 17.
axb5 axb5 18. Bxh6 $18 {Stockfish12-R}) 16... Be6 17. Bxe6 fxe6 18. Rd1 Qc7 19.
axb5 cxb5 20. Nd4 Qb6 21. Qg4 (21. Rxa5 $1 Qxa5 22. Nxe6 Rf7 23. Nd5 $18 {
Stockfish12-R}) 21... g5 $2 {(3.93 ? 7.41) Mistake. Nc4 was best.} (21... Nc4
22. Nxe6) 22. Qxe6+ $2 {(7.41 ? 3.81) Mistake. Rxa5 was best.} (22. Rxa5 Qxa5
23. Qxe6+ Rf7 24. Nf5 $18 {Stockfish12-R}) (22. Nxe6 Qxf2+ (22... h5 23. Qe4
Qxe6 24. Qxa8 $18) 23. Kh1 Qf5 24. Nxf8 Qxg4 25. hxg4 $18 {Stockfish12-R}) (22.
Be3 {considered} Nc4 23. Qh5 $18 {Stockfish12} Nxe3 24. Qg6+ Ng7 25. fxe3 Qc5
26. Nxe6 Qxe3+ 27. Kh1 Qxe5 28. Re1 $18 {-R}) 22... Qxe6 23. Nxe6 Nb3 24. Rb1 (
24. Nxf8 Nxa1 25. Ng6 Bb4 26. Nd5 $18 {Stockfish12-R}) 24... Rf5 25. Re1 $4 {
(3.46 ? -1.42) Blunder. f4 was best.} (25. f4 Nxc1 26. g4 Rf7 27. Rbxc1 $18 {
Stockfish12-R}) ({considered} 25. Nd5 Kf7 26. Nb6 Ra7 27. Nd8+ Bxd8 28. e6+
Kxe6 29. Rxd8 $18 {Stockfish12-R}) 25... Kf7 $19 {winning a piece in broad
daylight-R} 26. g4 Rf3 27. Kg2 (27. Nxg5+ hxg5 28. Nd5 Nxc1 29. Rbxc1 Rxh3 $19)
27... Rd3 28. f4 $2 {(-1.58 ? -3.39) Mistake. Nf4 was best.} (28. Nf4 gxf4 29.
Bxf4 Nd2 (29... Rad8 $19 {Stockfish12}) 30. Rbc1 Nc4 31. Bxh6 Nc7 32. Ne2 Ne6
33. Nf4 Rb3 34. h4 Rh8 $19) 28... Kxe6 29. f5+ Kf7 30. f6 $6 {(-3.29 ? -4.72)
Inaccuracy. Be3 was best.} (30. Be3 Bc5) 30... Nxc1 31. Rbxc1 Bb4 32. e6+ (32.
Re4 Bxc3 33. bxc3 a5 34. Rf1 Nc7 {the pawns are blockaded & the a pawn advance
soon wins-R}) 32... Kxf6 33. Rf1+ (33. Ne4+ Ke7 34. Re2 {Stockfish12
-considered but Wh has no attack against the K sheltering behind the pawn-R})
33... Kxe6 34. Rce1+ Kd7 (34... Kd6 {looks a little stronger-R}) 35. Rf7+ Kc6
36. Re6+ Nd6 {Stockfish12 prefers this, however-R} (36... Rd6 {expected-ends
any Wh ideas of pushing a pawn through on the K side-R}) 37. Ne4 (37. Rxh6 $5 {
Stockfish12-R}) 37... Rd8 $6 {(-9.11 ? -5.35) Inaccuracy. Kd5 was best.} (37...
Kd5 38. Rfe7 Nxe4 39. Re5+ Kc6 40. R7e6+ Nd6 41. Rxh6 Rd2+ 42. Kf3 Rxb2 43.
Rxg5 Bd2 44. Rxd6+) 38. Rxh6 Kd5 39. Nf6+ Kc4 40. Ra7 Rd2+ 41. Kf3 a5 42. h4
Rh2 43. hxg5 Rxb2 44. g6 $6 {(-5.64 ? -7.93) Inaccuracy. Rc7+ was best.[didn't
look very promising to Wh-R]} (44. Rc7+ Bc5 45. Rh1 Rc2 46. Re1 Kb3 47. g6 Rf2+
48. Kg3 Bd4 49. Nd7 Rc2 50. Rxc2 Kxc2) 44... Rb3+ 45. Kg2 Ne8 $6 {(-8.26 ? -5.
57) Inaccuracy. Nf5 was best.} (45... Nf5) 46. Ne4 (46. Nxe8 $2 Rd2+ 47. Kf1
Rb1# {-R}) 46... Rb2+ 47. Kf3 Rd3+ 48. Kf4 Bd2+ $6 {(-7.01 ? -5.07) Inaccuracy.
Bc5 was best.} (48... Bc5 49. g7 Be3+ 50. Ke5 Rd5+ 51. Ke6 Nxg7+ 52. Rxg7 Bxh6
53. Rc7+ Kd4 54. g5 Re5+ 55. Kf7) 49. Nxd2+ Rbxd2 50. Re7 $2 {(-4.63 ? -8.93)
Mistake. Rh1 was best.} (50. Rh1 Rd4+ 51. Kg3 Nf6 52. Rc1+ Kb4 53. Rb1+ Kc5 54.
Rxa5 Ne4+ 55. Kf3 R2d3+ 56. Kg2 Nc3) (50. g7 {could have been tried} Nxg7 51.
Rxg7 {but Bl can run a Q side pawn advance more effectively than the single g
pawn} a4 52. g5 a3 53. Ra7 b4 54. g6 Rf2+ 55. Ke4 Rg3 56. g7 Rfg2 {-R}) 50...
Rf2+ 51. Kg5 {a move to the e file is a quick mate} Rd5+ 52. Kh4 Rh2+ 53. Kg3
Rxh6 54. Rxe8 Rxg6 55. Re4+ Rd4 {Normal White resigns.} 0-1
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.5"]
[White "Pinch, David"]
[Black "Francis, Matthew"]
[Result "0-1"]
[ECO "A91"]
[WhiteElo "1798"]
[BlackElo "1648"]
[Annotator "kemen"]
[PlyCount "112"]
[EventDate "2021.??.??"]
{[%evp 0,112,80,63,66,-14,46,24,38,38,38,41,82,41,47,23,37,-34,44,-11,22,4,30,
8,2,-9,18,15,18,-27,-33,-31,-33,-33,-33,-64,-69,-91,-87,-108,-71,-98,-50,-85,
-87,-99,-51,-65,-70,-77,-66,-61,-63,-110,-125,-118,-75,-177,-180,-180,-162,
-187,-157,-206,-155,-160,-172,-189,-129,-160,-129,-158,-149,-175,-148,-155,
-165,-198,-189,-214,-234,-229,-229,-456,-582,-600,-349,-356,-356,-374,-342,
-388,-320,-401,-391,-1292,-353,-367,-339,-363,-363,-1494,-456,-618,-254,-1067,
-1092,-1096,-1159,-1216,-1275,-29971,-29972,-29989,-29992]} 1. d4 e6 2. c4 (2.
Nf3 f5 3. Bg5 Nf6 4. Nbd2 h6 5. Bxf6 Qxf6 6. e4 d6 7. Bd3 Be7 8. e5 Qf7 9. Qe2
Nc6 10. c3 Bd7 11. O-O-O O-O-O {Pinch-Francis,WCU Online U1800, 2020, 0-1})
2... f5 3. g3 Nf6 4. Bg2 d5 (4... c6 5. Nf3 d5 6. O-O Bd6 7. Nc3 O-O 8. Rb1
Nbd7 9. b4 Ne4 {T.Brown-Francis, Dyfed Open 2017,1/2-1/2}) 5. Nc3 c6 6. Nh3 {
the Carlsbad Sytem , occurs in a variety of anti-Dutch sustems} Be7 (6... Bd6 {
main}) 7. O-O O-O 8. Qc2 (8. b3) (8. Nf4 {main lines}) 8... Qe8 (8... Na6 {
alternative}) 9. Bg5 $146 (9. Rb1 {1 game each}) (9. Nf4 $14 {Stockfish12})
9... Nbd7 10. Nf4 (10. cxd5 $1 {takes advantage of Bl's lat} exd5 (10... cxd5
11. Nb5 Qf7 12. Bf4 Ne8 13. Nxa7 $18) (10... Nxd5 11. e4 fxe4 12. Nxe4 $18 {
Bl has a wrecked pawn structure}) 11. Qxf5 $16) 10... Bd6 11. c5 {releases the
central tension, and e5 will be coming} (11. cxd5 exd5 12. Nd3 Ne4 13. Bf4 $14
{Stockfish12}) 11... Bc7 12. Nd3 Ne4 (12... e5) 13. Bf4 e5 14. Bxe5 Nxe5 15.
Nxe5 Bxe5 16. dxe5 Qxe5 17. Nxe4 (17. e3 Nxc3 18. Qxc3 Qxc3 19. bxc3 $11 {
Stockfish12}) 17... fxe4 $17 {Bl has got definite K side attacking chances.
Wh's normal counterplay on the Q side is non-exitent} 18. e3 $2 {concedes all
the wh squares. This kibitzer kept on expecting an imminent invasion on f3,
creating mating threats on g2 and/or h2} Bf5 {'developing ' a piece, but it
blocks the f file, where Bl can even put a R on f3.} (18... Bg4 $19 {Rudy}) (
18... Qh5 $19 {Stockfish12}) 19. a3 Qe7 (19... Bg4 $19) (19... Qe6 $19) 20. b4
h5 21. Rfb1 (21. h3 $17) 21... h4 $19 22. Rb2 hxg3 {releasing the tension a
little early- Wh could take back with the f pawn , hoping for excanges along
the f file.} (22... Rf6 $19) (22... Bg4 $17 {both Stockfish12}) 23. hxg3 (23.
fxg3 $17 {gives better chances of survival}) 23... Rad8 {the R has no
prospects here, other than to play ...d4, which would eradicate Bl's advantage
on the K side, based upon a firm centre} (23... Rf6 24. Rf1 Raf8 25. b5 Bg4 $19
{Stockfish12}) (23... Bg4 $19 {Stockfish12}) 24. Qc3 Bg4 (24... Rf6 {also}) 25.
b5 Rd7 (25... Qg5 26. Qd2 Qh5 $19 {Stockfish12}) 26. Qa5 (26. bxc6 bxc6 27.
Rab1 $17 {Wh is getting a bit of undereserved Q side action}) 26... Qxc5 (26...
Qe5 27. Rab1 Rdf7 28. Qxa7 d4 $19 {Stockfish12}) (26... Qg5 27. Qxa7 Rdf7 28.
Rab1 Qf5 29. Qa5 Rf6 30. Qc7 Qh5 31. Qe7 Bf3 32. bxc6 Bxg2 33. Kxg2 Qf3+ 34.
Kg1 bxc6 35. Qd6 Kh7 {Stockfish12-and Wh is getting mated}) 27. Qb4 {Wh can
now swap Qs, so delaying direct mating attacks on his own K.} Qxb4 28. Rxb4 c5
29. Rb2 b6 {Bl has an extra pawn, with pawn & piece mobility greater than Wh}
30. a4 Re8 31. Kf1 Rc7 (31... Kf7 32. a5 Ke6 {Stockfish12}) 32. Rd2 Be6 (32...
Rd7) 33. Rc1 Bf7 34. Ke1 Rcc8 (34... g6 35. a5 Kg7 36. Ra1 Kf6 37. Rda2 Be6 $19
{Stockfish12}) 35. Kd1 Rcd8 36. Kc2 d4 {Stockfish12 continues to prepare, but
there is no reason why this is not a good continuation} 37. exd4 cxd4 38. Re1
d3+ 39. Kb2 Rd4 {the Engine starts giving up a piece here to defang the pawns
paralysing Wh} 40. Ka3 Rc4 (40... Bd5 {extra security, but not required}) 41.
Re3 (41. Bxe4 $5 {Stockfish12}) 41... Rc3+ 42. Kb2 Rb3+ 43. Ka1 Ra3+ (43... Rc8
) 44. Kb1 Rxa4 45. Rb2 Bg6 46. Rd2 Rb4+ 47. Rb2 Rxb2+ (47... d2 48. Kc2 Rd8 $19
{Stockfish12}) 48. Kxb2 Re5 49. Kc1 Rc5+ 50. Kb2 Rxb5+ (50... d2) 51. Kc3 Re5 (
51... Rc5+ 52. Kd2 Rc2+ 53. Ke1 Bh5 {Stockfish12}) 52. f3 Rc5+ 53. Kd2 Rc2+ 54.
Kd1 Rxg2 55. fxe4 Bh5+ 56. Kc1 d2+ {a systematic Q side demolition, though it
could have been an earlier K side demolition.} 0-1
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.7"]
[White "Williams, R Gareth"]
[Black "Holman, Sam"]
[Result "1-0"]
[ECO "A82"]
[WhiteElo "1643"]
[BlackElo "1386"]
[Annotator "kemen"]
[PlyCount "71"]
[EventDate "2021.??.??"]
{[%evp 0,71,20,23,65,-4,12,-64,-64,-70,43,-70,-24,-29,-32,-49,-41,-55,10,-22,
-6,-40,-40,-71,-40,-70,-100,-100,-108,-154,-153,-148,-154,-181,-132,-181,-169,
-169,-161,-200,-192,-209,-210,-250,-197,-269,-283,-283,-187,-190,-190,-240,
-217,-345,-239,-222,-40,-133,-126,-170,-170,-170,-177,-169,-114,-130,-130,-130,
-103,-103,7,-13,29993,29994]} 1. d4 f5 2. e4 {Staunton Gambit} (2. Nf3 Nf6 3.
Bg5 e6 4. e3 Be7 5. h3 h6 6. Bf4 b6 7. Nc3 Bb7 8. Be2 d6 9. Qd3 Nbd7 10. a3 Ne4
{E Llywelyn-Holman, Dyfed League 2017,0-1}) 2... fxe4 3. Bc4 (3. Nc3) (3. f3 {
main lines}) 3... Nf6 (3... d5 $2 4. Qh5+) 4. Nc3 d5 $6 (4... e6 {main}) (4...
Nc6) 5. Bb3 (5. Nxd5 $16 {yet} Nxd5 6. Qh5+ g6 7. Qxd5 Qxd5 8. Bxd5 Nc6 9. Ne2
Bg7 10. O-O (10. c3 $18) 10... Nxd4 11. Nxd4 Bxd4 12. Rd1 $11 {Calleja- De
Groof, EU ch U08, Bratislava 2019, 0-1}) 5... g6 (5... Nc6 6. Bg5 $17 {
transposes, but 5-2}) (5... e6 $17 {Stockfish12-stabilizes the centre}) 6. Bg5
(6. Bf4 $11) 6... c6 7. Nge2 (7. f3 $11) 7... Bg7 $17 8. Qd2 h5 {weakens the K
side, especially g6} (8... Nbd7 {prepares for ...e5}) 9. h3 Na6 10. Nf4 Bf5 11.
O-O-O (11. O-O $5) 11... Qd7 $17 (11... Qd6 $19 {Stockfish12}) (11... Nc7 $19 {
Stockfish12}) 12. f3 exf3 13. gxf3 Nh7 $19 14. h4 Nxg5 15. hxg5 O-O-O {Wh has
no real compensation for the pawn} 16. Nce2 Nc7 (16... e5) 17. Ng3 e5 (17... h4
18. Nxf5 Qxf5 19. c3 e5 $19 {Stockfish12}) 18. dxe5 Bxe5 19. Rde1 Rhe8 20. Kb1
Bd6 21. a3 Kb8 (21... Rxe1+ 22. Rxe1 h4 23. Nge2 Re8 $19 {Stockfish12}) 22. Ka2
Rxe1 23. Rxe1 Re8 $19 (23... h4 $19) 24. Rxe8+ Nxe8 25. Qe3 Ng7 26. Qd4 Qc7 (
26... h4 27. Nge2 Qe7 $19 {Stockfish12}) 27. Nxf5 Be5 (27... Nxf5 28. Qh8+ Qc8
29. Qxc8+ Kxc8 30. Nxg6 h4 $19 {the h pawn will cost a N}) 28. Qd3 (28. Qb4
Bxf4 29. Nxg7 Bd6 30. Qd4 Be5 31. Qd3 Qxg7 $17 {Stockfish12}) 28... Bxf4 29.
Nxg7 Qxg7 $19 30. c4 d4 (30... Bc1 31. Qc2 dxc4 32. Bxc4 Bxg5 $19 {Stockfish12}
) 31. Qe4 Be3 (31... Bxg5 $19) 32. Qe8+ Kc7 33. Bc2 h4 $19 (33... Bxg5 $19) 34.
Bxg6 h3 {missing Wh's desparation counterchances} (34... Bxg5 $19) 35. Bf5 h2 (
35... Qxg5 36. Qe5+ Kb6 37. c5+ Ka5 38. Qc7+ Kb5 39. Qxb7+ Kxc5 40. Qxa7+ Kd6
41. Qb8+ Ke7 42. Qe5+ Kf8 43. Qd6+ Qe7 (43... Kg7 44. Qd7+ Kf8 45. Bxh3 $18)
44. Qxe7+ Kxe7 45. Bxh3 d3 46. Bf1 d2 47. Be2 $14 {Stockfish12- but, with two
passed pawns and Bl's centre pawn blockaded, Wh is most likely winning}) 36. c5
{closes the mating net.} 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.8"]
[White "Gunn, Tom"]
[Black "Orton, Paul"]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "1398"]
[BlackElo "1612"]
[Annotator "kemen"]
[PlyCount "115"]
[EventDate "2021.??.??"]
{[%evp 0,115,23,23,29,35,52,12,12,4,4,5,4,-9,21,7,51,21,-5,-28,-4,-8,-14,-39,
-31,-24,-21,-27,-44,-34,14,4,11,-15,-13,-13,1,-41,-11,-33,-11,-5,-15,-24,-22,
-22,4,2,17,0,0,0,-6,0,0,-8,-24,-25,-16,-15,-14,-20,-14,-2,0,-8,0,0,0,0,34,35,
62,65,58,70,94,103,96,95,99,120,103,108,101,102,109,167,280,304,304,324,358,
320,403,458,453,360,390,390,405,373,405,485,724,491,752,770,1105,1022,1229,
1269,1470,1519,29394,29970,29971,29972]} 1. d4 Nf6 2. Nf3 g6 3. e3 (3. Bf4 Bg7
4. e3 d6 5. Nbd2 Nbd7 6. c3 c5 7. Qb3 b6 8. Ng5 O-O 9. Be2 Bb7 10. Rg1 {
Philpin-Orton, Dyfed Open 2019,1-0}) 3... Bg7 4. Bd3 O-O 5. O-O d5 (5... d6 6.
c4 Nbd7 7. Re1 e5 8. Nbd2 Ng4 9. h3 Nh6 10. d5 f5 11. e4 f4 {Gunn-Miller,
Dyfed League 2020,0-1}) 6. Nbd2 {main} (6. c4 c5 7. cxd5 Nxd5 8. dxc5 Nb4 9.
Bc2 N8a6 10. Qd2 $2 Qxd2 11. Nbxd2 Nxc2 {Gunn-M Jones,Dyfed Online Closed rd1,
2021,0-1}) 6... Nbd7 7. c4 {54% for Wh} (7. c3 {main, yet 39% for Wh (original
Colle setup)}) 7... c6 {main, 55 % for Wh} (7... c5 {more active and scores
better for Bl than the text; 44 % for Wh}) 8. b3 e5 (8... Re8 {is slower}) 9.
Nxe5 (9. cxd5 cxd5 {5 draws, 1 Bl win , an 1165 vs 1863} (9... Nxd5 {3 draws,
1 win each})) (9. dxe5 {Cloud Engines} Ng4 {2 draws, 1 Bl win}) 9... Nxe5 10.
dxe5 Ng4 11. Bb2 (11. Ba3 {Houdini3 & Stockfish12}) 11... Nxe5 12. Bxe5 (12.
Be2 {Cloud Engines, though Bl gets a slight edge with} dxc4 13. bxc4 (13. Nxc4
$6 Nxc4 14. Bxg7 Nxe3 15. Qxd8 Rxd8 16. Bf6 Rd2 17. fxe3 Rxe2 $17) 13... Nf3+
14. Nxf3 Bxb2 {Wh has split pawns on the Q side & ceded the 2 Bs}) 12... Bxe5
13. Rb1 Qc7 (13... dxc4 14. Bxc4 Qe7 $17 {Stockfish12}) 14. Nf3 Bd6 {this
feels to be the wrong direction} 15. cxd5 cxd5 16. Qc2 Qxc2 17. Bxc2 $11 {
the pawns are static, especially the d5 pawn- not a postion that favours the Bs
} b6 18. Rbc1 Bb7 19. Nd4 a6 (19... Ba6 {looks better- the text is making Bl's
QB into a bad one}) 20. Bd3 Rac8 21. a4 Rfe8 22. g3 Rc7 (22... Rc5 {looks
preferable, fighting for the c file ( Rxc5 would give the B the kind of
dynamic pawn structure they need)}) 23. Rxc7 Bxc7 24. Rc1 Rc8 25. Kf1 Bd6 26.
Rxc8+ Bxc8 27. Ke2 Kg7 28. Kd2 Kf6 29. f4 $11 h6 30. Be2 g5 31. Bf3 Bb7 32. Kd3
Bc5 33. Kc3 a5 34. Kd3 $11 Kg6 35. Nb5 Kf6 (35... Ba6 36. Bxd5 Bxb5+ 37. axb5 {
and the opposite colour Bs leave a drawn position}) (35... Bc6 36. Nc7 gxf4 37.
gxf4 Bd6 38. Nxd5 Bc5 (38... Bxd5 39. Bxd5 f5 $11) 39. Ne7+ Bxe7 40. Bxc6 f5 {
One pawn is insufficient in these positions}) 36. Nc7 Ke7 (36... Bd6 $2 37.
Ne8+ Ke7 38. Nxd6 Kxd6 39. fxg5 hxg5 40. Kd4 {and Wh will win because of a
passed h pawn}) (36... Bc6 37. Bxd5 Bd7 $11 {Stockfish12 reckons the 2 Bs can
still hold this- especially because Wh's extra pawn is a centre one (when the
K comes to blockade it, it is not out of play , compared to having to stop an
h pawn)}) 37. Bxd5 Bxd5 $2 {This loses. In this kind of position the N is far
suerior to a single B, which can only function on it's own colour. It cannot
protect Pawns from the N , except by putting them on the same colour, & thus
worsening it's own mobility; as well as granting free access to the opposite
colour squares to the N & it's K. In the end a series of N checks drive the Bl
K away; thus allowing the Wh K to penetrate the defences.} (37... Kd6 38. Bxb7
Kxc7 {holds the draw}) 38. Nxd5+ Kd6 39. Nc3 f5 40. fxg5 (40. h4 {preferred by
Stockfish12, with an eye to winning Bl's h pawn- getting an outside passed
pawn looks simpler}) (40. Ne2 {Komodo14 Endgame}) 40... hxg5 41. h4 gxh4 42.
gxh4 Ke7 (42... Ke5 {is a little bit better}) 43. e4 f4 (43... fxe4+ 44. Nxe4
Bb4 45. Kc4 {wins easily for Wh}) 44. Nd5+ Kf7 45. Nxf4 Kf6 46. h5 (46. Kc4)
46... Bf8 47. Nd5+ (47. e5+) (47. Kc4 {Wh has lots of ways forward}) 47... Kg5
48. Nxb6 Kxh5 49. Kc4 Bb4 50. Kd5 (50. Kb5 Kg4 51. Nc4 {in a blitz game
getting rid of the last opponents pawn can be crucial if behind on time}) 50...
Kg6 51. Ke6 Kg7 52. Nd5 Bf8 53. e5 Ba3 54. Kd7 Kf7 55. e6+ Kf8 56. e7+ (56. b4
Bxb4 57. Nxb4 axb4 58. e7+ {Komodo14 End ,-gets a Q quicker}) 56... Bxe7 57.
Nxe7 Kf7 58. Nc6 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.3"]
[White "Evans, Gwyn"]
[Black "Watkin-Jones, Adam"]
[Result "0-1"]
[ECO "A07"]
[WhiteElo "1192"]
[BlackElo "1918"]
[Annotator "kemen"]
[PlyCount "122"]
[EventDate "2021.??.??"]
{[%evp 0,122,80,9,10,-34,-12,1,31,4,1,2,2,2,15,-15,-9,-45,-30,-43,-14,-42,-88,
-88,-134,-137,-132,-141,-147,-147,-135,-133,-155,-224,-163,-209,-278,-274,-271,
-282,-283,-240,-257,-297,-312,-335,-244,-337,-314,-480,-491,-471,-405,-407,
-294,-728,-687,-687,-724,-724,-365,-356,-356,-354,-340,-371,-369,-429,-444,
-1050,-332,-338,-311,-311,-314,-404,-405,-493,-585,-585,-593,-599,-359,-359,
-330,-389,-331,-328,-333,-349,-352,-365,-408,-441,-406,-474,-469,-521,-533,
-552,-585,-1095,-1401,-1674,-1710,-2138,-2660,-29971,-1559,-29977,-1148,-1303,
-1412,-1493,-1499,-1497,-1458,-1664,-1854,-2089,-2676,-28449,-28134,-2698,
-29984]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. d3 Nbd7 (4... Bg4 {main}) 5. O-O e5
6. Nbd2 Be7 (6... Bd6) 7. h3 (7. e4 {main idea in this King's Indian Reversed,
yields Wh 66 % in 78 games. In this game Wh does not claim enough of the
centre, so his pieces end up in each other's way}) 7... O-O 8. Nh4 $146 (8. e4
$11 {3 draws}) 8... Re8 $15 9. Ndf3 Bf8 $17 (9... e4 $17 {Stockfish12}) 10. Bg5
h6 $19 11. Bd2 Nb6 (11... e4 12. Nd4 c5 13. Ndf5 g5 $19 {Stockfish12}) 12. Qc1
g5 13. Nxg5 hxg5 14. Bxg5 Bg7 (14... Qd6 $19 {looks simplest}) 15. Bh6 Nh7 (
15... Nh5) 16. Bd2 e4 {in what follows Bl is able to make use of the open
spaces that Wh has created around the Bl K side} (16... Bf6 17. Nf3 Bf5 $19 {
Stockfish12}) 17. c3 Bf6 18. dxe4 Bxh4 19. gxh4 Qxh4 $19 20. Kh2 dxe4 {Wh has
no presence in the centre at all & his pieces are passive} 21. Be3 Bf5 (21...
Nd5) 22. Rg1 Bg6 (22... Kh8 {prepares to have the Bl pieces invade via the g
file}) 23. Qc2 Nd5 24. Raf1 Nhf6 25. Bh1 Re5 26. Rg3 Rh5 27. Rfg1 Ng4+ 28. Kg2
Ngxe3+ 29. fxe3 Rg5 (29... Nxe3+ $1 {Stockfish12- finishes things off quicker}
30. Rxe3 Rg5+ 31. Kh2 Rxg1 32. Kxg1 Qg5+ 33. Kf2 Qf4+ 34. Kg2 Qxe3 {and Bl is
a R up with all Wh's pieces looking helpless}) 30. Kh2 Rxg3 31. Rxg3 Re8 (31...
Kh7) 32. Qc1 Re5 33. Bg2 Rg5 34. Qe1 Rxg3 (34... Nxe3 {Stockfish12- is even
better}) 35. Qxg3 Qxg3+ 36. Kxg3 Nxe3 (36... b5) 37. Bh1 (37. Bxe4 Bxe4 38. Kf4
{but Wh remains a piece down}) 37... Nd1 38. Kg4 {an error but it doesn't
really matter much at this point} Nf2+ 39. Kg3 Nxh1+ 40. Kg2 Kg7 41. Kxh1 Kh6
42. Kh2 Kh5 43. Kg3 f5 44. e3 Bf7 45. b3 Kg5 46. c4 a5 47. a3 a4 48. bxa4 Bxc4
49. a5 Be2 50. h4+ Kf6 51. Kf4 c5 {quickest} 52. Kg3 c4 53. Kf2 Bd3 (53... Bh5)
54. Ke1 Kg6 (54... c3) (54... f4) 55. Kd2 Kh5 56. a4 Kxh4 57. Kc3 Kg3 58. Kb4
f4 59. exf4 Kxf4 60. Kb5 c3+ 61. Kb6 Ba6 0-1
[Event "Dyfed Online Closed Lichess"]
[Site "?"]
[Date "2021.01.19"]
[Round "3.4"]
[White "Van Kemenade, R."]
[Black "Brewer, Joshua"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "1999"]
[BlackElo "1481"]
[Annotator "kemen"]
[PlyCount "110"]
[EventDate "2021.01.20"]
[TimeControl "2700+15"]
{[%evp 0,110,23,11,42,6,17,24,48,29,81,-20,-1,1,4,8,-1,-1,14,0,31,51,47,43,43,
49,85,83,127,124,84,112,225,109,176,209,211,220,186,191,167,201,212,180,402,
197,202,188,191,143,148,-92,-88,-85,-105,-116,-116,-198,-199,-199,-211,-242,
-215,-252,-235,-344,-332,-423,-402,-409,-406,-459,-462,-481,-508,-690,-397,
-405,-383,-525,-486,-564,-596,-682,-596,-695,-408,-432,-458,-589,-763,-762,
-388,-503,-534,-522,-558,-607,-348,-348,-341,-848,-893,-915,-902,-916,-921,
-942,-942,-962,-962,-1083,-1224]} 1. e4 Nc6 2. Nf3 e5 3. Bc4 {C50 Italian Game}
d6 4. c3 Nf6 $6 {(0.36 ? 1.12) Inaccuracy. f5 was best.} (4... f5 5. d3 f4 6.
b4 Qf6 7. Qb3 Nh6 8. d4 Nf7 9. Nbd2) (4... Bg4 {main line-R}) (4... Be7 {
main line-R}) 5. d3 $6 {(1.12 ? 0.48) Inaccuracy. Ng5 was best.} (5. Ng5 {
considered by Wh -R} d5 6. exd5 Na5 (6... Nxd5 7. d4 (7. Qf3 Qxg5 8. Bxd5 Qg6)
7... Be7 8. Nxf7) 7. Qa4+ Nd7 8. Nxf7 Qh4 9. Nxe5 Bd6) 5... h6 (5... Be7) 6.
O-O a6 (6... g6 {found in GM games-R}) 7. a4 (7. Bb3 {main-R}) 7... Be7 $6 {
(0.25 ? 0.77) Inaccuracy. g5 was best.} (7... g5 8. Bb3 Bg7 9. Nbd2 g4 10. Ne1
O-O 11. g3 d5 12. Ng2) 8. Re1 (8. h3) (8. Nbd2 {have been played-R}) 8... Bd7 {
perhaps this blocks things in a bit, 0-0 is simpler-R} 9. d4 exd4 (9... Bg4 $5)
10. cxd4 O-O 11. h3 Na5 $6 {(0.86 ? 1.44) Inaccuracy. Nb4 was best.} (11... Nb4
12. Bd2 $14) 12. Ba2 b5 $6 {(1.20 ? 2.06) Inaccuracy. c5 was best.} (12... c5
13. Nc3 cxd4 14. Nxd4 Rc8 15. Qd3 Nc6 16. Nxc6 Rxc6 17. Qg3 Kh8 18. Rd1 Be6 19.
Be3 $11 {lichess analysis} (19. e5 $16 {Stockfish12-R})) 13. Nc3 $6 {(2.06 ? 0.
97) Inaccuracy. e5 was best.} (13. e5 dxe5) 13... c6 $4 {(0.97 ? 3.89) Blunder.
b4 was best.} (13... b4 14. Nd5 Nxd5 15. Bxd5 c6 16. Ba2 $16 {Stockfish12- R})
14. e5 $18 dxe5 15. dxe5 Ne8 16. Qe2 $6 {(4.27 ? 2.94) Inaccuracy. axb5 was
best.} (16. axb5 axb5 17. Qc2 b4 18. Bb1 g6 19. e6 Bxe6 20. Rxe6 Bf6 21. Bxh6
bxc3 22. b4 Nb7 23. Rxa8 Qxa8 24. Ba2 $18 {Stockfish12-R}) (16. Qc2 Nc7 17.
axb5 axb5 18. Bxh6 $18 {Stockfish12-R}) 16... Be6 17. Bxe6 fxe6 18. Rd1 Qc7 19.
axb5 cxb5 20. Nd4 Qb6 21. Qg4 (21. Rxa5 $1 Qxa5 22. Nxe6 Rf7 23. Nd5 $18 {
Stockfish12-R}) 21... g5 $2 {(3.93 ? 7.41) Mistake. Nc4 was best.} (21... Nc4
22. Nxe6) 22. Qxe6+ $2 {(7.41 ? 3.81) Mistake. Rxa5 was best.} (22. Rxa5 Qxa5
23. Qxe6+ Rf7 24. Nf5 $18 {Stockfish12-R}) (22. Nxe6 Qxf2+ (22... h5 23. Qe4
Qxe6 24. Qxa8 $18) 23. Kh1 Qf5 24. Nxf8 Qxg4 25. hxg4 $18 {Stockfish12-R}) (22.
Be3 {considered} Nc4 23. Qh5 $18 {Stockfish12} Nxe3 24. Qg6+ Ng7 25. fxe3 Qc5
26. Nxe6 Qxe3+ 27. Kh1 Qxe5 28. Re1 $18 {-R}) 22... Qxe6 23. Nxe6 Nb3 24. Rb1 (
24. Nxf8 Nxa1 25. Ng6 Bb4 26. Nd5 $18 {Stockfish12-R}) 24... Rf5 25. Re1 $4 {
(3.46 ? -1.42) Blunder. f4 was best.} (25. f4 Nxc1 26. g4 Rf7 27. Rbxc1 $18 {
Stockfish12-R}) ({considered} 25. Nd5 Kf7 26. Nb6 Ra7 27. Nd8+ Bxd8 28. e6+
Kxe6 29. Rxd8 $18 {Stockfish12-R}) 25... Kf7 $19 {winning a piece in broad
daylight-R} 26. g4 Rf3 27. Kg2 (27. Nxg5+ hxg5 28. Nd5 Nxc1 29. Rbxc1 Rxh3 $19)
27... Rd3 28. f4 $2 {(-1.58 ? -3.39) Mistake. Nf4 was best.} (28. Nf4 gxf4 29.
Bxf4 Nd2 (29... Rad8 $19 {Stockfish12}) 30. Rbc1 Nc4 31. Bxh6 Nc7 32. Ne2 Ne6
33. Nf4 Rb3 34. h4 Rh8 $19) 28... Kxe6 29. f5+ Kf7 30. f6 $6 {(-3.29 ? -4.72)
Inaccuracy. Be3 was best.} (30. Be3 Bc5) 30... Nxc1 31. Rbxc1 Bb4 32. e6+ (32.
Re4 Bxc3 33. bxc3 a5 34. Rf1 Nc7 {the pawns are blockaded & the a pawn advance
soon wins-R}) 32... Kxf6 33. Rf1+ (33. Ne4+ Ke7 34. Re2 {Stockfish12
-considered but Wh has no attack against the K sheltering behind the pawn-R})
33... Kxe6 34. Rce1+ Kd7 (34... Kd6 {looks a little stronger-R}) 35. Rf7+ Kc6
36. Re6+ Nd6 {Stockfish12 prefers this, however-R} (36... Rd6 {expected-ends
any Wh ideas of pushing a pawn through on the K side-R}) 37. Ne4 (37. Rxh6 $5 {
Stockfish12-R}) 37... Rd8 $6 {(-9.11 ? -5.35) Inaccuracy. Kd5 was best.} (37...
Kd5 38. Rfe7 Nxe4 39. Re5+ Kc6 40. R7e6+ Nd6 41. Rxh6 Rd2+ 42. Kf3 Rxb2 43.
Rxg5 Bd2 44. Rxd6+) 38. Rxh6 Kd5 39. Nf6+ Kc4 40. Ra7 Rd2+ 41. Kf3 a5 42. h4
Rh2 43. hxg5 Rxb2 44. g6 $6 {(-5.64 ? -7.93) Inaccuracy. Rc7+ was best.[didn't
look very promising to Wh-R]} (44. Rc7+ Bc5 45. Rh1 Rc2 46. Re1 Kb3 47. g6 Rf2+
48. Kg3 Bd4 49. Nd7 Rc2 50. Rxc2 Kxc2) 44... Rb3+ 45. Kg2 Ne8 $6 {(-8.26 ? -5.
57) Inaccuracy. Nf5 was best.} (45... Nf5) 46. Ne4 (46. Nxe8 $2 Rd2+ 47. Kf1
Rb1# {-R}) 46... Rb2+ 47. Kf3 Rd3+ 48. Kf4 Bd2+ $6 {(-7.01 ? -5.07) Inaccuracy.
Bc5 was best.} (48... Bc5 49. g7 Be3+ 50. Ke5 Rd5+ 51. Ke6 Nxg7+ 52. Rxg7 Bxh6
53. Rc7+ Kd4 54. g5 Re5+ 55. Kf7) 49. Nxd2+ Rbxd2 50. Re7 $2 {(-4.63 ? -8.93)
Mistake. Rh1 was best.} (50. Rh1 Rd4+ 51. Kg3 Nf6 52. Rc1+ Kb4 53. Rb1+ Kc5 54.
Rxa5 Ne4+ 55. Kf3 R2d3+ 56. Kg2 Nc3) (50. g7 {could have been tried} Nxg7 51.
Rxg7 {but Bl can run a Q side pawn advance more effectively than the single g
pawn} a4 52. g5 a3 53. Ra7 b4 54. g6 Rf2+ 55. Ke4 Rg3 56. g7 Rfg2 {-R}) 50...
Rf2+ 51. Kg5 {a move to the e file is a quick mate} Rd5+ 52. Kh4 Rh2+ 53. Kg3
Rxh6 54. Rxe8 Rxg6 55. Re4+ Rd4 {Normal White resigns.} 0-1
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.5"]
[White "Pinch, David"]
[Black "Francis, Matthew"]
[Result "0-1"]
[ECO "A91"]
[WhiteElo "1798"]
[BlackElo "1648"]
[Annotator "kemen"]
[PlyCount "112"]
[EventDate "2021.??.??"]
{[%evp 0,112,80,63,66,-14,46,24,38,38,38,41,82,41,47,23,37,-34,44,-11,22,4,30,
8,2,-9,18,15,18,-27,-33,-31,-33,-33,-33,-64,-69,-91,-87,-108,-71,-98,-50,-85,
-87,-99,-51,-65,-70,-77,-66,-61,-63,-110,-125,-118,-75,-177,-180,-180,-162,
-187,-157,-206,-155,-160,-172,-189,-129,-160,-129,-158,-149,-175,-148,-155,
-165,-198,-189,-214,-234,-229,-229,-456,-582,-600,-349,-356,-356,-374,-342,
-388,-320,-401,-391,-1292,-353,-367,-339,-363,-363,-1494,-456,-618,-254,-1067,
-1092,-1096,-1159,-1216,-1275,-29971,-29972,-29989,-29992]} 1. d4 e6 2. c4 (2.
Nf3 f5 3. Bg5 Nf6 4. Nbd2 h6 5. Bxf6 Qxf6 6. e4 d6 7. Bd3 Be7 8. e5 Qf7 9. Qe2
Nc6 10. c3 Bd7 11. O-O-O O-O-O {Pinch-Francis,WCU Online U1800, 2020, 0-1})
2... f5 3. g3 Nf6 4. Bg2 d5 (4... c6 5. Nf3 d5 6. O-O Bd6 7. Nc3 O-O 8. Rb1
Nbd7 9. b4 Ne4 {T.Brown-Francis, Dyfed Open 2017,1/2-1/2}) 5. Nc3 c6 6. Nh3 {
the Carlsbad Sytem , occurs in a variety of anti-Dutch sustems} Be7 (6... Bd6 {
main}) 7. O-O O-O 8. Qc2 (8. b3) (8. Nf4 {main lines}) 8... Qe8 (8... Na6 {
alternative}) 9. Bg5 $146 (9. Rb1 {1 game each}) (9. Nf4 $14 {Stockfish12})
9... Nbd7 10. Nf4 (10. cxd5 $1 {takes advantage of Bl's lat} exd5 (10... cxd5
11. Nb5 Qf7 12. Bf4 Ne8 13. Nxa7 $18) (10... Nxd5 11. e4 fxe4 12. Nxe4 $18 {
Bl has a wrecked pawn structure}) 11. Qxf5 $16) 10... Bd6 11. c5 {releases the
central tension, and e5 will be coming} (11. cxd5 exd5 12. Nd3 Ne4 13. Bf4 $14
{Stockfish12}) 11... Bc7 12. Nd3 Ne4 (12... e5) 13. Bf4 e5 14. Bxe5 Nxe5 15.
Nxe5 Bxe5 16. dxe5 Qxe5 17. Nxe4 (17. e3 Nxc3 18. Qxc3 Qxc3 19. bxc3 $11 {
Stockfish12}) 17... fxe4 $17 {Bl has got definite K side attacking chances.
Wh's normal counterplay on the Q side is non-exitent} 18. e3 $2 {concedes all
the wh squares. This kibitzer kept on expecting an imminent invasion on f3,
creating mating threats on g2 and/or h2} Bf5 {'developing ' a piece, but it
blocks the f file, where Bl can even put a R on f3.} (18... Bg4 $19 {Rudy}) (
18... Qh5 $19 {Stockfish12}) 19. a3 Qe7 (19... Bg4 $19) (19... Qe6 $19) 20. b4
h5 21. Rfb1 (21. h3 $17) 21... h4 $19 22. Rb2 hxg3 {releasing the tension a
little early- Wh could take back with the f pawn , hoping for excanges along
the f file.} (22... Rf6 $19) (22... Bg4 $17 {both Stockfish12}) 23. hxg3 (23.
fxg3 $17 {gives better chances of survival}) 23... Rad8 {the R has no
prospects here, other than to play ...d4, which would eradicate Bl's advantage
on the K side, based upon a firm centre} (23... Rf6 24. Rf1 Raf8 25. b5 Bg4 $19
{Stockfish12}) (23... Bg4 $19 {Stockfish12}) 24. Qc3 Bg4 (24... Rf6 {also}) 25.
b5 Rd7 (25... Qg5 26. Qd2 Qh5 $19 {Stockfish12}) 26. Qa5 (26. bxc6 bxc6 27.
Rab1 $17 {Wh is getting a bit of undereserved Q side action}) 26... Qxc5 (26...
Qe5 27. Rab1 Rdf7 28. Qxa7 d4 $19 {Stockfish12}) (26... Qg5 27. Qxa7 Rdf7 28.
Rab1 Qf5 29. Qa5 Rf6 30. Qc7 Qh5 31. Qe7 Bf3 32. bxc6 Bxg2 33. Kxg2 Qf3+ 34.
Kg1 bxc6 35. Qd6 Kh7 {Stockfish12-and Wh is getting mated}) 27. Qb4 {Wh can
now swap Qs, so delaying direct mating attacks on his own K.} Qxb4 28. Rxb4 c5
29. Rb2 b6 {Bl has an extra pawn, with pawn & piece mobility greater than Wh}
30. a4 Re8 31. Kf1 Rc7 (31... Kf7 32. a5 Ke6 {Stockfish12}) 32. Rd2 Be6 (32...
Rd7) 33. Rc1 Bf7 34. Ke1 Rcc8 (34... g6 35. a5 Kg7 36. Ra1 Kf6 37. Rda2 Be6 $19
{Stockfish12}) 35. Kd1 Rcd8 36. Kc2 d4 {Stockfish12 continues to prepare, but
there is no reason why this is not a good continuation} 37. exd4 cxd4 38. Re1
d3+ 39. Kb2 Rd4 {the Engine starts giving up a piece here to defang the pawns
paralysing Wh} 40. Ka3 Rc4 (40... Bd5 {extra security, but not required}) 41.
Re3 (41. Bxe4 $5 {Stockfish12}) 41... Rc3+ 42. Kb2 Rb3+ 43. Ka1 Ra3+ (43... Rc8
) 44. Kb1 Rxa4 45. Rb2 Bg6 46. Rd2 Rb4+ 47. Rb2 Rxb2+ (47... d2 48. Kc2 Rd8 $19
{Stockfish12}) 48. Kxb2 Re5 49. Kc1 Rc5+ 50. Kb2 Rxb5+ (50... d2) 51. Kc3 Re5 (
51... Rc5+ 52. Kd2 Rc2+ 53. Ke1 Bh5 {Stockfish12}) 52. f3 Rc5+ 53. Kd2 Rc2+ 54.
Kd1 Rxg2 55. fxe4 Bh5+ 56. Kc1 d2+ {a systematic Q side demolition, though it
could have been an earlier K side demolition.} 0-1
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.7"]
[White "Williams, R Gareth"]
[Black "Holman, Sam"]
[Result "1-0"]
[ECO "A82"]
[WhiteElo "1643"]
[BlackElo "1386"]
[Annotator "kemen"]
[PlyCount "71"]
[EventDate "2021.??.??"]
{[%evp 0,71,20,23,65,-4,12,-64,-64,-70,43,-70,-24,-29,-32,-49,-41,-55,10,-22,
-6,-40,-40,-71,-40,-70,-100,-100,-108,-154,-153,-148,-154,-181,-132,-181,-169,
-169,-161,-200,-192,-209,-210,-250,-197,-269,-283,-283,-187,-190,-190,-240,
-217,-345,-239,-222,-40,-133,-126,-170,-170,-170,-177,-169,-114,-130,-130,-130,
-103,-103,7,-13,29993,29994]} 1. d4 f5 2. e4 {Staunton Gambit} (2. Nf3 Nf6 3.
Bg5 e6 4. e3 Be7 5. h3 h6 6. Bf4 b6 7. Nc3 Bb7 8. Be2 d6 9. Qd3 Nbd7 10. a3 Ne4
{E Llywelyn-Holman, Dyfed League 2017,0-1}) 2... fxe4 3. Bc4 (3. Nc3) (3. f3 {
main lines}) 3... Nf6 (3... d5 $2 4. Qh5+) 4. Nc3 d5 $6 (4... e6 {main}) (4...
Nc6) 5. Bb3 (5. Nxd5 $16 {yet} Nxd5 6. Qh5+ g6 7. Qxd5 Qxd5 8. Bxd5 Nc6 9. Ne2
Bg7 10. O-O (10. c3 $18) 10... Nxd4 11. Nxd4 Bxd4 12. Rd1 $11 {Calleja- De
Groof, EU ch U08, Bratislava 2019, 0-1}) 5... g6 (5... Nc6 6. Bg5 $17 {
transposes, but 5-2}) (5... e6 $17 {Stockfish12-stabilizes the centre}) 6. Bg5
(6. Bf4 $11) 6... c6 7. Nge2 (7. f3 $11) 7... Bg7 $17 8. Qd2 h5 {weakens the K
side, especially g6} (8... Nbd7 {prepares for ...e5}) 9. h3 Na6 10. Nf4 Bf5 11.
O-O-O (11. O-O $5) 11... Qd7 $17 (11... Qd6 $19 {Stockfish12}) (11... Nc7 $19 {
Stockfish12}) 12. f3 exf3 13. gxf3 Nh7 $19 14. h4 Nxg5 15. hxg5 O-O-O {Wh has
no real compensation for the pawn} 16. Nce2 Nc7 (16... e5) 17. Ng3 e5 (17... h4
18. Nxf5 Qxf5 19. c3 e5 $19 {Stockfish12}) 18. dxe5 Bxe5 19. Rde1 Rhe8 20. Kb1
Bd6 21. a3 Kb8 (21... Rxe1+ 22. Rxe1 h4 23. Nge2 Re8 $19 {Stockfish12}) 22. Ka2
Rxe1 23. Rxe1 Re8 $19 (23... h4 $19) 24. Rxe8+ Nxe8 25. Qe3 Ng7 26. Qd4 Qc7 (
26... h4 27. Nge2 Qe7 $19 {Stockfish12}) 27. Nxf5 Be5 (27... Nxf5 28. Qh8+ Qc8
29. Qxc8+ Kxc8 30. Nxg6 h4 $19 {the h pawn will cost a N}) 28. Qd3 (28. Qb4
Bxf4 29. Nxg7 Bd6 30. Qd4 Be5 31. Qd3 Qxg7 $17 {Stockfish12}) 28... Bxf4 29.
Nxg7 Qxg7 $19 30. c4 d4 (30... Bc1 31. Qc2 dxc4 32. Bxc4 Bxg5 $19 {Stockfish12}
) 31. Qe4 Be3 (31... Bxg5 $19) 32. Qe8+ Kc7 33. Bc2 h4 $19 (33... Bxg5 $19) 34.
Bxg6 h3 {missing Wh's desparation counterchances} (34... Bxg5 $19) 35. Bf5 h2 (
35... Qxg5 36. Qe5+ Kb6 37. c5+ Ka5 38. Qc7+ Kb5 39. Qxb7+ Kxc5 40. Qxa7+ Kd6
41. Qb8+ Ke7 42. Qe5+ Kf8 43. Qd6+ Qe7 (43... Kg7 44. Qd7+ Kf8 45. Bxh3 $18)
44. Qxe7+ Kxe7 45. Bxh3 d3 46. Bf1 d2 47. Be2 $14 {Stockfish12- but, with two
passed pawns and Bl's centre pawn blockaded, Wh is most likely winning}) 36. c5
{closes the mating net.} 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.19"]
[Round "3.8"]
[White "Gunn, Tom"]
[Black "Orton, Paul"]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "1398"]
[BlackElo "1612"]
[Annotator "kemen"]
[PlyCount "115"]
[EventDate "2021.??.??"]
{[%evp 0,115,23,23,29,35,52,12,12,4,4,5,4,-9,21,7,51,21,-5,-28,-4,-8,-14,-39,
-31,-24,-21,-27,-44,-34,14,4,11,-15,-13,-13,1,-41,-11,-33,-11,-5,-15,-24,-22,
-22,4,2,17,0,0,0,-6,0,0,-8,-24,-25,-16,-15,-14,-20,-14,-2,0,-8,0,0,0,0,34,35,
62,65,58,70,94,103,96,95,99,120,103,108,101,102,109,167,280,304,304,324,358,
320,403,458,453,360,390,390,405,373,405,485,724,491,752,770,1105,1022,1229,
1269,1470,1519,29394,29970,29971,29972]} 1. d4 Nf6 2. Nf3 g6 3. e3 (3. Bf4 Bg7
4. e3 d6 5. Nbd2 Nbd7 6. c3 c5 7. Qb3 b6 8. Ng5 O-O 9. Be2 Bb7 10. Rg1 {
Philpin-Orton, Dyfed Open 2019,1-0}) 3... Bg7 4. Bd3 O-O 5. O-O d5 (5... d6 6.
c4 Nbd7 7. Re1 e5 8. Nbd2 Ng4 9. h3 Nh6 10. d5 f5 11. e4 f4 {Gunn-Miller,
Dyfed League 2020,0-1}) 6. Nbd2 {main} (6. c4 c5 7. cxd5 Nxd5 8. dxc5 Nb4 9.
Bc2 N8a6 10. Qd2 $2 Qxd2 11. Nbxd2 Nxc2 {Gunn-M Jones,Dyfed Online Closed rd1,
2021,0-1}) 6... Nbd7 7. c4 {54% for Wh} (7. c3 {main, yet 39% for Wh (original
Colle setup)}) 7... c6 {main, 55 % for Wh} (7... c5 {more active and scores
better for Bl than the text; 44 % for Wh}) 8. b3 e5 (8... Re8 {is slower}) 9.
Nxe5 (9. cxd5 cxd5 {5 draws, 1 Bl win , an 1165 vs 1863} (9... Nxd5 {3 draws,
1 win each})) (9. dxe5 {Cloud Engines} Ng4 {2 draws, 1 Bl win}) 9... Nxe5 10.
dxe5 Ng4 11. Bb2 (11. Ba3 {Houdini3 & Stockfish12}) 11... Nxe5 12. Bxe5 (12.
Be2 {Cloud Engines, though Bl gets a slight edge with} dxc4 13. bxc4 (13. Nxc4
$6 Nxc4 14. Bxg7 Nxe3 15. Qxd8 Rxd8 16. Bf6 Rd2 17. fxe3 Rxe2 $17) 13... Nf3+
14. Nxf3 Bxb2 {Wh has split pawns on the Q side & ceded the 2 Bs}) 12... Bxe5
13. Rb1 Qc7 (13... dxc4 14. Bxc4 Qe7 $17 {Stockfish12}) 14. Nf3 Bd6 {this
feels to be the wrong direction} 15. cxd5 cxd5 16. Qc2 Qxc2 17. Bxc2 $11 {
the pawns are static, especially the d5 pawn- not a postion that favours the Bs
} b6 18. Rbc1 Bb7 19. Nd4 a6 (19... Ba6 {looks better- the text is making Bl's
QB into a bad one}) 20. Bd3 Rac8 21. a4 Rfe8 22. g3 Rc7 (22... Rc5 {looks
preferable, fighting for the c file ( Rxc5 would give the B the kind of
dynamic pawn structure they need)}) 23. Rxc7 Bxc7 24. Rc1 Rc8 25. Kf1 Bd6 26.
Rxc8+ Bxc8 27. Ke2 Kg7 28. Kd2 Kf6 29. f4 $11 h6 30. Be2 g5 31. Bf3 Bb7 32. Kd3
Bc5 33. Kc3 a5 34. Kd3 $11 Kg6 35. Nb5 Kf6 (35... Ba6 36. Bxd5 Bxb5+ 37. axb5 {
and the opposite colour Bs leave a drawn position}) (35... Bc6 36. Nc7 gxf4 37.
gxf4 Bd6 38. Nxd5 Bc5 (38... Bxd5 39. Bxd5 f5 $11) 39. Ne7+ Bxe7 40. Bxc6 f5 {
One pawn is insufficient in these positions}) 36. Nc7 Ke7 (36... Bd6 $2 37.
Ne8+ Ke7 38. Nxd6 Kxd6 39. fxg5 hxg5 40. Kd4 {and Wh will win because of a
passed h pawn}) (36... Bc6 37. Bxd5 Bd7 $11 {Stockfish12 reckons the 2 Bs can
still hold this- especially because Wh's extra pawn is a centre one (when the
K comes to blockade it, it is not out of play , compared to having to stop an
h pawn)}) 37. Bxd5 Bxd5 $2 {This loses. In this kind of position the N is far
suerior to a single B, which can only function on it's own colour. It cannot
protect Pawns from the N , except by putting them on the same colour, & thus
worsening it's own mobility; as well as granting free access to the opposite
colour squares to the N & it's K. In the end a series of N checks drive the Bl
K away; thus allowing the Wh K to penetrate the defences.} (37... Kd6 38. Bxb7
Kxc7 {holds the draw}) 38. Nxd5+ Kd6 39. Nc3 f5 40. fxg5 (40. h4 {preferred by
Stockfish12, with an eye to winning Bl's h pawn- getting an outside passed
pawn looks simpler}) (40. Ne2 {Komodo14 Endgame}) 40... hxg5 41. h4 gxh4 42.
gxh4 Ke7 (42... Ke5 {is a little bit better}) 43. e4 f4 (43... fxe4+ 44. Nxe4
Bb4 45. Kc4 {wins easily for Wh}) 44. Nd5+ Kf7 45. Nxf4 Kf6 46. h5 (46. Kc4)
46... Bf8 47. Nd5+ (47. e5+) (47. Kc4 {Wh has lots of ways forward}) 47... Kg5
48. Nxb6 Kxh5 49. Kc4 Bb4 50. Kd5 (50. Kb5 Kg4 51. Nc4 {in a blitz game
getting rid of the last opponents pawn can be crucial if behind on time}) 50...
Kg6 51. Ke6 Kg7 52. Nd5 Bf8 53. e5 Ba3 54. Kd7 Kf7 55. e6+ Kf8 56. e7+ (56. b4
Bxb4 57. Nxb4 axb4 58. e7+ {Komodo14 End ,-gets a Q quicker}) 56... Bxe7 57.
Nxe7 Kf7 58. Nc6 1-0
Friday, 15 January 2021
Spring Forward, Fall Back
The second round of the Online Dyfed Closed was played on Tuesday 12 January with two Aberystwyth playerson on 1 and the other three on 0. My English Opening against Howard Williams did not give me any real attacking chances, but I held my own against a very strong opponent until I allowed my position to become too passive and he played a fine exchange sacrifice to break through in the centre with his pawns. It's strange how some players have lower-rated opponents who always cause them trouble. For me it was the late Jan Sendall, for Rudy van Kemenade it seems to be Martin Jones. In a complex position arising from a Pirc Defence, Rudy miscalculated a tactical sequence and ended up a piece down. Though he did his best to generate counterplay, there was no reprieve. So, with the two players who won last week losing this week, it was left to the others to salvage the honour of the club. Adam Watkin-Jones got a big advantage when Scott Hammett played inaccurately against White's tricky Nc3 line in the Dutch; Black never equalized and the threats quickly became too great. Tom Gunn had to negotiate a difficult knight ending against Mark Paffard after a Closed Sicilian; White's queenside pawn majority gave winning chances, but Tom managed to draw with his higher-rated opponent. Finally Sam Holman's Ruy Lopez brought a textbook kingside attack against Awne Osinga, a good recovery after his disappointingly quick defeat last week. Four Aber players are now on 1/2, with Tom on ½/2.
Congratulations to Tom, who is confirmed as Welsh Online U1500 Champion for his performance in the WCU Online League.
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.12"]
[Round "2.1"]
[White "Francis, Matthew"]
[Black "Williams, A Howard"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1648"]
[BlackElo "2340"]
[Annotator "kemen"]
[PlyCount "94"]
[EventDate "2021.??.??"]
{[%evp 0,94,36,-29,38,43,66,8,10,8,11,1,-6,-25,-29,-13,-27,-19,24,-2,13,7,19,1,
1,-15,6,16,30,22,23,20,11,-37,-26,-21,-27,-28,-12,-33,0,-7,-6,-6,15,-14,30,23,
45,46,46,-8,8,-155,-12,-8,1,-14,-4,-4,-9,-53,-19,-20,13,-109,-58,-143,-129,
-104,-109,-293,-60,-60,-93,-144,-133,-165,-128,-156,-89,-162,-169,-169,-185,
-160,-160,-176,-194,-169,-202,-188,-214,-249,-445,-839,-1143]} 1. c4 g6 (1...
Nf6 2. Nc3 e5 3. g3 (3. Nf3 Nc6 4. g3 Nd4 {Heap-Williams, Dyfed League 2014,
0-1}) 3... Bb4 {A Robinson-Williams,Dyfed League 2015,0-1}) 2. Nc3 (2. g3 Bg7
3. Bg2 d6 4. e4 Nc6 5. d3 f5 6. Nc3 Nf6 {Francis-R Van Kemenade, Dyfed Closed
2014,0-1}) 2... Bg7 3. g3 Nf6 4. Bg2 O-O 5. d3 d6 (5... c6 6. e4 e5 7. Nge2 d6
8. O-O Be6 9. b3 d5 {Bevan-Williams, Dyfed Open 2014,1/2-1/2}) 6. e4 c5 {
most frequent} (6... e5) 7. Nge2 Nc6 8. O-O Ne8 (8... a6 9. h3 Rb8 {
alternative plan}) 9. a3 (9. Be3 Nd4 10. Rb1) 9... Rb8 10. Rb1 Nc7 11. Be3 {
2 draws, 4 Bl wins} (11. b4 {main}) 11... Nd4 (11... Ne6 12. b4 {transposes to
30 games, 58 % for Wh}) 12. b4 b6 13. Nd5 $146 (13. h3 {2 wins each, 1 draw})
13... Nxe2+ 14. Qxe2 Ne6 15. Qd2 Nd4 $11 16. Kh1 (16. h4 $5) 16... e6 17. Nc3
Bd7 18. b5 {aiming to get in an a pawn advance ? but then Wh shifts attention
to the K side} Qe7 19. Bh6 (19. a4) 19... f5 20. Bxg7 Qxg7 21. exf5 gxf5 (21...
Nxf5 $5 $11 {Stockfish12}) 22. Rbe1 $14 Rbe8 23. Ne2 e5 (23... Nxe2 24. Rxe2 f4
25. Be4 Kh8 $14 {Stockfish12}) 24. Nxd4 cxd4 25. Rd1 (25. f4 $16 {the pawn
mass needs to be restained} Kh8 26. a4 Bc8 27. a5 $16 {Stockfish12}) 25... f4
$11 26. Rg1 $6 {Wh is now becomin too passive} (26. Bd5+ Kh8 (26... Be6 27. Bc6
Bd7 28. gxf4 Bxc6+ 29. bxc6 Qc7 30. fxe5 Qxc6+ 31. f3 dxe5 32. Rde1 $11) 27. f3
fxg3 28. Rg1 Qf6 29. Rxg3) 26... Kh8 (26... f3 $19 {Stockfish12} 27. Bf1 Rf6
28. Re1 Bf5 $19 {Wh's pieces have no way of getting out of the K side logjam,
and Bl slowly prepares a breakthrough} 29. h3 Kh8 30. g4 Rg8 31. Rg3 Bc8 32. a4
Rg6 33. Ra1 Qe7 34. Qd1 h5 35. a5 Bb7 $19 {Stockfish12}) 27. gxf4 Rxf4 28. Be4
(28. Bd5) 28... Qf6 (28... Bg4) 29. f3 Bf5 30. Rde1 (30. Bd5 $11 {Stockfish12})
30... Rf8 (30... Bxe4 31. fxe4 Rf2 32. Qg5 Qxg5 33. Rxg5 Rd2 34. Rg3 Rg8 35.
Reg1 Rxg3 36. Rxg3 h5 37. h4 $11 {Stockfish12}) 31. Re2 Bg6 32. Bd5 (32. Bxg6
hxg6 33. Re4 Qg7 34. Qg2 $11 {Stockfish12}) (32. Reg2 $11 {Stockfish12, looks
a simpler method of holding on.}) 32... Rxf3 $1 $19 {the exchange sacrifice
liberates the central pawn mass} 33. Bxf3 Qxf3+ 34. Reg2 Bxd3 35. Qg5 Bg6 36.
Qe7 Qf6 37. Qxf6+ Rxf6 38. Re1 d3 39. Rd2 e4 (39... Rf4) 40. Re3 Rf1+ 41. Kg2
Rc1 42. Kg3 Rxc4 {Rs are good attackers} 43. Re1 {but bad defenders} Kg7 44.
Kf4 Kf6 45. Rb1 d5 46. Rb4 Rxb4 47. axb4 d4 0-1
[Event "Dyfed Online Closed"]
[Site "lichess.org"]
[Date "2021.01.12"]
[Round "2.3"]
[White "Jones, Martin C"]
[Black "Van Kemenade, R.."]
[Result "1-0"]
[ECO "B07"]
[WhiteElo "1725"]
[BlackElo "1999"]
[Annotator "lichess.org"]
[PlyCount "119"]
[EventDate "2021.??.??"]
[TimeControl "2700+15"]
{[%evp 0,119,19,31,54,61,57,85,87,72,94,44,49,30,66,41,43,40,63,56,56,50,47,39,
39,20,19,21,25,10,19,5,4,27,31,31,90,1,152,144,393,397,389,400,458,466,461,460,
456,444,456,428,466,450,468,486,568,440,522,507,508,451,498,477,521,484,569,
492,507,402,437,454,454,391,418,349,353,351,354,331,331,343,327,336,441,456,
456,473,467,456,479,435,448,417,479,478,495,544,534,543,557,562,573,571,578,
584,631,648,660,631,630,684,681,693,857,858,889,836,942,677,1387,1762]} 1. d4
d6 2. e4 Nf6 3. Nc3 g6 {B07 Pirc Defense} (3... c6 4. Nf3 Qc7 5. Bf4 Nh5 6. Be3
Nd7 7. h3 Nhf6 8. Bd3 e5 9. Qe2 Be7 10. g4 Nf8 11. O-O-O Ne6 {Jones-J Van
Kemenade, Dyfed League 2016,0-1}) (3... Nbd7 4. Nf3 e5 5. Be3 c6 6. Qd2 Be7 7.
Be2 h6 8. h3 Qc7 9. O-O Nf8 10. dxe5 dxe5 11. a3 g5 {Jones-R Van Kemenade,
Dyfed League 2016,1-0}) 4. Be3 (4. Nf3 Bg7 5. Bg5 O-O 6. Qd2 Bg4 7. Be2 Nc6 8.
h3 Bxf3 9. Bxf3 e5 10. dxe5 dxe5 11. O-O-O {Jones-A H Williams, Dyfed League
2017,0-1}) 4... c6 5. f3 b5 6. Qd2 b4 (6... Nbd7 {main} 7. g4 (7. O-O-O) (7.
Nh3 Nb6 8. Nf2 a5 9. Rd1 Ba6 10. Nb1 Nc4 11. Bxc4 bxc4 12. c3 Rb8 13. Na3 d5
14. O-O e6 15. e5 Nd7 {G Shaw-R Van Kemenade, Merseyside-Yorkshire 1981,1/2-1/2
})) (6... Bg7) 7. Nce2 (7. Nd1 {also}) 7... a5 8. g4 {main} h5 9. g5 Nfd7 10.
h4 Nb6 (10... c5 11. f4 Bb7 12. Bg2 Bg7 13. O-O-O O-O 14. dxc5 dxc5 15. Bxc5 {
Meftahi-Graa, Monastir Subsidiere op 2014,1-0}) 11. Ng3 Ba6 (11... Qc7 12. Qf2
N8d7 13. f4 c5 14. f5 Bg7 15. Nh3 cxd4 16. Bxd4 Bxd4 17. Qxd4 Ne5 $15 {
Schneider-Javakhishvili, BundesLiga frauen 2017,0-1}) 12. Bd3 (12. Bxa6 $11 {
Stockfish12} Nxa6 13. Qf2 Bg7 14. N1e2 Nc4 15. Bc1 c5 16. Rb1 cxd4 $19 {
Dirican-Ceylan, TUR ch tm 2018,0-1}) 12... Bg7 $17 {Stockfish12} (12... c5 $15
{Stockfish12}) (12... Nc4 13. Bxc4 Bxc4 14. a3 {leaves a vulnerable a5 pawn}
bxa3 15. b3 Ba6 16. Rxa3 Bg7 17. Rxa5 c5 18. dxc5 Qc8 19. N1e2 Nc6 20. Ra4 O-O
21. Kf2 Rd8 22. Qc1 dxc5 23. Bxc5 Ne5 $14 {Stockfish12- the Bl pieces have
lots of play- whether it is enough for two pawns though?}) (12... d5 13. N1e2
dxe4 (13... e6 $11 14. b3 Nc4 15. bxc4 dxc4 16. f4 cxd3 17. cxd3 Bg7 18. f5 c5
$11 {Stockfish12}) (13... Bg7 14. e5 e6 15. b3 Bxd3 16. Qxd3 (16. cxd3 $5)
16... N8d7 17. Nf4 Qe7 18. O-O c5 $11 19. Nfxh5 {is not so good now} gxh5 20.
f4 cxd4 21. Bxd4 Nc8 22. Qe2 Nb8 23. Nxh5 Nc6 24. Bf2 Kf8 $17 {Stockfish12})
14. fxe4 Bg7 15. e5 O-O 16. Nxh5 gxh5 17. Nf4 Nd5 18. Nxh5 Qc8 19. O-O-O $16 {
Stockfish12}) 13. N1e2 Qc8 {deterring 0-0} (13... c5 14. c3 O-O $17 {
Stockfish12}) (13... O-O $17 {Stockfish12}) 14. Rd1 (14. f4 c5 15. c3 Bxd3 16.
Qxd3 Qa6 17. Rd1 Qxd3 18. Rxd3 N8d7 $11 {Stockfish12}) 14... d5 $15 {Blocks
any Wh action down the d file. ,With Wh having 0-0-0 instead of Rd1, the Bl Q
still on d8 and the Ns on g1 & Nbd7 & B still on f8; Bl to move played e6 now
in Tolnai-Chernin, AUT ch tm, , 0-1 1994. Marin 2017:244 claims a slight
advantage for Bl in this position as Wh has no K real K side chances while Bl
has plenty on the Q side} 15. Nf4 (15. Kf2 $5) 15... N8d7 (15... dxe4 {is an
initial Engine recommendation, which just leads to messy position. Instead Bl
was considering ...e6 as an alternative} 16. Bxe4 (16. fxe4 c5 17. dxc5 Na4 18.
Bxa6 Rxa6 19. Nd5 Be5 20. Bf4 Nd7 21. O-O $11 {Stockfish1`12}) 16... Nc4 17.
Qc1 Nd6 18. Nxg6 Nxe4 19. Nxe7 Kxe7 20. Nxe4 Re8 21. Kf2 $11 {Stockfish12}) (
15... e6 16. O-O Nc4 17. Bxc4 Bxc4 18. Rfe1 Nd7 $11) 16. b3 {keeping Bl out of
c4, but leaves a hole on c3, that Bl tries to exploit.But it contains a flaw.
A recommendation when looking a tactical sequence is to try and look one move
further on from the concluding point, to check out any subsequent possibility
for the other side. The position now reached is highly complex} (16. e5 {
is more dynamic, as Bl needs to be careful} Nc4 (16... e6 {allows a dangerous
sacrifice} 17. Nxe6 fxe6 18. Bxg6+ Kd8 19. b3 $18 {Wh will push pawns on the K
side}) (16... Bxd3 17. Qxd3 Nf8 (17... e6 18. Nxg6 fxg6 19. Qxg6+ Kf8 20. Nxh5
{is evemn more dangerous for Bl})) (16... Nf8 17. b3 e6 18. Rc1 Bxd3 19. Nxd3
Nfd7 20. O-O $14 {Stockfish12}) 17. Bxc4 dxc4 18. e6 Nb6 19. exf7+ Kxf7 20. c3
Nd5 21. O-O Rf8 $11 {Stockfish12}) 16... e5 (16... c5 {considered By Bl} 17.
Bxa6 (17. exd5 Bxd3 18. Qxd3 c4 19. Qe4 O-O 20. O-O Qc7 $11 {In Stockfish12
eyesbut Bl has still to regain the pawn}) 17... Rxa6 18. exd5 c4 19. O-O Qa8
20. d6 exd6 21. d5 O-O $11 {Stockfish12}) (16... dxe4 17. Bxe4 (17. fxe4 c5 $17
) 17... Nd5 18. Nxg6 (18. Nxd5 cxd5 19. Bxd5 Ra7 $11) 18... fxg6 19. Bxg6+ Kd8
20. Bxh5 N7b6 21. Bg4 Qc7 22. Kf2 Nxe3 23. Qxe3 Nd5 $11 {Stockfish12; again,
not all clear- the = here is not that it's level, but that both sides have
chances.}) (16... Bxd3 17. cxd3 (17. Qxd3 e5 18. dxe5 Bxe5 19. exd5 Nxd5 20.
O-O Nxe3 21. Qxe3 O-O $11) 17... e6 18. O-O Qb7 19. Rde1 $14 {Stockfish12}) 17.
dxe5 Nxe5 (17... Bxe5 {which Wh was expecting, leads to equality} 18. Bxa6 Qxa6
19. Kf2 O-O 20. exd5 Bxf4 21. Bxf4 Nxd5 $11 {Stockfish12}) (17... Bxd3 18. Nxd3
Nxe5 19. Nxe5 Bxe5 20. Qf2 Nd7 21. f4 Bc3+ 22. Kf1 O-O 23. Kg2 $11 {Stockfish12
}) 18. Qf2 (18. Bxa6 Qxa6 19. Qe2 O-O 20. Qxa6 Rxa6 21. Kf2 Rc8 22. Rhe1 $16 {
Stockfish12}) 18... d4 $2 {a combination that has a hole in it.} (18... Nxd3+
19. cxd3 Bc3+ 20. Kf1 Nd7 21. Kg2 O-O 22. d4 $16) (18... Bxd3 19. Bxb6 (19.
cxd3 d4 20. Bxd4 Nxf3+ 21. Qxf3 Bxd4 22. Nge2 Bg7 23. d4 O-O 24. O-O $14 c5 (
24... a4) 25. Rc1 c4 26. bxc4 Nxc4 27. Rf2 Nd2 28. Qd3 Qg4+ 29. Rg2 Bxd4+ 30.
Nxd4 Qxf4 31. Rxd2 Rac8 32. Rf1 Qxh4 33. Nf3 Qg4+ 34. Rg2 Qf4 $14 {Stockfish12}
) 19... Bb5 20. Bc5 Qb7 21. Qe3 O-O-O 22. Kf2 Rhe8 $11 {Stockfish12}) 19. Bxd4
Nxf3+ (19... Bxd3 20. Bxb6 Bb5 21. Bc5 $18) 20. Qxf3 Bxd4 21. Bxa6 $18 Bc3+ (
21... Qg4 22. Qxg4 Bc3+ 23. Kf2 hxg4 24. Bb7 Rd8 25. Bxc6+ Ke7 26. Nd5+ {
is not much better for Bl}) 22. Qxc3 {the reply Bl had missed when playing 16..
.e5} bxc3 (22... O-O 23. Bxc8 bxc3 24. Bb7 {is worse}) 23. Bxc8 Rxc8 24. Ke2 {
and Wh is a piece up. In what follows Bl tries to eliminate as many pawns as
possible, but in vain} O-O (24... Ke7 $5) 25. Rhe1 (25. Rd6) 25... c5 26. Rd6
Rb8 27. Red1 (27. Nxg6 {returning the piece for extra pawns, is Stockfish 's
second recommenadation} fxg6 28. Rxg6+ Kf7 29. Rd6 Kg8 30. Nxh5 {and the Wh
pieces dominate the board, as well as 3 extra pawns}) 27... c4 (27... a4 $5)
28. Nd5 Nc8 (28... Nxd5 29. R1xd5 a4 30. bxc4 Rb2 31. Kd3 Rxa2 32. Rd8 $18) 29.
Nf6+ Kg7 30. Rc6 (30. Ngxh5+) 30... cxb3 31. axb3 Rb4 32. Nd5 Rb5 33. Nxc3 Re5
34. Rd5 Ne7 35. Rxe5 Nxc6 36. Rd5 Nb4 37. Rd2 Rc8 38. Nd5 Nxc2 39. Kd1 (39. Nf1
) 39... Na1 40. Rb2 Rb8 41. b4 a4 (41... axb4 42. Rb1 {loses a N}) 42. Ra2 Nb3
43. Rxa4 Nd4 {perhaps Wh will drop an h pawn?} 44. Ra3 Nb5 45. Rf3 Nd4 46. Rf2
Re8 (46... Ra8 $5) 47. Kd2 Rc8 48. Kd3 Ne6 49. b5 Nc5+ 50. Kd4 Nb3+ 51. Ke5
Re8+ 52. Kd6 Re6+ 53. Kc7 Nc5 54. b6 Na6+ 55. Kb7 Nc5+ 56. Ka7 Rd6 57. Rc2 Rd7+
58. Kb8 Rd8+ 59. Kc7 Rd7+ 60. Kc8 {There is no perpetual. Normal Black resigns.
} 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.12"]
[Round "2.7"]
[White "Watkin-Jones, Adam"]
[Black "Hammett, Scott"]
[Result "1-0"]
[ECO "A83"]
[WhiteElo "1918"]
[BlackElo "1590"]
[Annotator "kemen"]
[PlyCount "43"]
[EventDate "2021.??.??"]
1. d4 f5 2. Nc3 Nf6 3. Bg5 e6 {a dangerous line as Bl lands up with a porous K
side} (3... d5 {main} 4. e3 e6 5. Nh3 (5. Nf3 {main}) 5... Be7 6. Nf4 {IC
Jones-Hammett, Dyfed League 2017,1-0}) 4. e4 (4. Bxf6 Qxf6 5. e3 d5 6. Bd3 c6
7. Qf3 Bd6 8. Nh3 O-O 9. a3 Bd7 {Chadaway-Hammett, Dyfed Major 2020, 0-1}) 4...
fxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Qh5+ (7. Nf3 {main} O-O 8. Bd3 Nc6 9. c3 d5
10. Nxf6+ gxf6 11. Qe2 Bd7 12. O-O {Hurn-Hammett, Dyfed Major 2020,1-0 ( 68 %
for Wh from this position)}) 7... g6 8. Qh6 Qe7 9. Nxf6+ Qxf6 10. O-O-O $16 (
10. Nf3 {more frequent}) 10... Nc6 11. Nf3 Qf8 (11... d6) (11... Ne7 {main
lines}) 12. Qd2 $18 (12. Qe3 {Cloud Engines} Ne7 13. Bc4 Nf5 14. Qe2 Qh6+ 15.
Kb1 O-O 16. d5 d6 17. dxe6 Ne7 18. h4 $18 {Dauner-Mertens, Baden ch ,
Hockenheim 1994,1/2-1/2}) 12... Ne7 13. Bc4 c6 14. Rde1 (14. h4 {also}) 14...
d5 15. Bd3 Bd7 16. Ne5 {Wh controls the centre & Bl has a horribly bad B} O-O-O
17. Re3 Nf5 18. Bxf5 (18. Rf3 {is also very effective}) 18... exf5 {other
captures are equally bad} 19. Qa5 Kb8 20. Ra3 a6 21. Qb6 Kc8 (21... Ka8 22. Rb3
Rb8 (22... Bc8 23. Nxc6) 23. Nxd7) 22. Rb3 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.12"]
[Round "2.9"]
[White "Paffard, Mark"]
[Black "Gunn, Tom"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "1608"]
[BlackElo "1398"]
[Annotator "kemen"]
[PlyCount "84"]
[EventDate "2021.??.??"]
1. e4 c5 2. Nc3 e6 3. g3 d5 (3... a6 4. Bg2 Nc6 5. d3 Nf6 6. f4 d6 7. Nf3 Nd4
8. O-O {Paffard-Dwain Jones, WCU Online U1800,2020,1-0}) 4. Bg2 (4. exd5 exd5
5. Bg2 {main}) 4... dxe4 (4... Nf6 5. d3 d4 6. Nce2 Nc6 7. Nf3 Bd6 8. O-O O-O
9. c3 e5 $15 {Paffard-Rafferty,Dyfed Online League 2020,0-1}) (4... d4 5. Nce2
Nc6 {main}) 5. Nxe4 Be7 6. d3 Nf6 7. Be3 Nbd7 (7... Nd5) (7... Nxe4) 8. Ne2 (8.
Nxf6+ Bxf6 9. c3 O-O 10. Nf3 Rb8 11. O-O b5 {Hild-Guichard, FRA ch tm (women)
2011,0-1}) 8... O-O 9. O-O (9. N2c3 Rb8 10. a4 Nxe4 11. dxe4 Ne5 12. Qe2 {
Doelzlmueller-Nindl, SLBW 1994,1/2-1/2}) 9... Rb8 10. h3 (10. Qc1 Qc7 11. Nf4
e5 12. Nh3 Nxe4 13. Bxe4 Nf6 14. Bg2 Be6 15. Ng5 Bd5 16. Ne4 Nxe4 17. dxe4 Bc6
18. Qe1 Bb5 {Zavec-Riznar, SLO ch women 1992,0-1}) 10... b6 (10... b5 $15 {
Stockfish12}) 11. c3 Bb7 12. Nxf6+ Nxf6 13. Bxb7 Rxb7 14. Qc2 Rd7 $17 15. Rad1
Qc7 (15... Nd5) 16. d4 Rfd8 (16... Nd5 17. Bc1 Rfd8 $17 {Stockfish12}) 17. dxc5
Bxc5 18. Bxc5 Qxc5 19. Rxd7 Rxd7 20. Rd1 Nd5 (20... Rxd1+ $11) 21. Qd3 Qc7 22.
Qb5 Nf6 (22... Kf8 $11) 23. Rxd7 Qxd7 24. Qxd7 Nxd7 $11 {Wh does have a Q side
majority, but probably not enough to guarantee a winas it's a c pawn} 25. Nd4
Kf8 (25... Nc5) 26. b4 a5 {this , though ,is dangerous. It allows Wh to gain a
potential passed a pawn. And Ns have the most difficulty holding R pawns} (
26... a6) 27. a4 (27. Nc6 {gives better chances, as Bl needs to find a N
sacrifice} axb4 28. cxb4 Ke8 29. a4 Nf6 30. Kg2 Nd5 31. a5 Nxb4 $1 32. Nxb4
bxa5 33. Nc2 Ke7 $11 34. Kf1 f5 35. Ke2 Kf6 36. Kd3 e5 37. Ne3 a4 38. Nc4 h5
39. f4 exf4 40. gxf4 g5 41. Ke2 g4 (41... h4 42. Kf3 gxf4 43. Kxf4 Kg6 $11) 42.
h4 Ke6 $11 {Stockfish12}) 27... axb4 (27... Ne5 $11 28. Kf1 Ke7 29. Ke2 Kd6 30.
f4 Nc4 31. Kd3 Kd5 $11 {Stockfish12}) 28. cxb4 Ke8 29. Kf1 $16 Kd8 30. Ke2 Kc7
(30... Ne5) 31. f4 (31. Nf3 {may be worth a try to see if the outside passed
pawn can be given up to let the Wh K & N into the K side; though it looks as
if Bl can hold} b5 (31... Kd6 32. Ng5 h6 33. Nxf7+ Kd5 34. Kd3 $18) (31... h6
32. Kd3 Kc6 33. Kc4 e5 34. Nh4 g6 35. Ng2 f5 36. Ne3 Nf6 37. f4 e4 38. g4 fxg4
39. hxg4 b5+ 40. axb5+ Kb6 41. Kd4 Kxb5 42. Ke5 Ne8 43. Kxe4 h5 (43... Kxb4 44.
Ke5 $16) 44. g5 Kxb4 45. f5 gxf5+ 46. Nxf5 Kc5 $11 {- Nalimov endgame
tablebases ( though Komodo14 still has a definite plus for Wh. In practice
giving up the distant passed pawn gives Wh all sorts of winning chances with
little risk of landing up with a loss.}) 32. a5 e5 33. Ng5 Nf6 34. Nxf7 Nd5 35.
Nxe5 Nxb4 36. Kd2 Kb7 37. Kc3 Nd5+ 38. Kd4 Ne7 39. Kc5 Ka6 40. Kd6 Nc8+ 41. Ke6
Kxa5 {very difficult to envisage or calculate correctly- Stockfish12 says
level-Komodo14 Endgame gives a definite plus for Wh} 42. h4 Kb4 (42... b4 43.
Nc6+ Ka4 44. Nxb4 Kxb4 45. Kf7 Kc4 46. Kxg7 h5 47. Kg6 $18) 43. h5 Kc5 44. Kf7
g5 45. Kg8 $18 {Komodo14 Endgame}) 31... e5 (31... Nf6) 32. Nb5+ Kc6 33. Kd3
exf4 34. gxf4 {though with the Wh K side pawns split it is now the Bl N that
threatens to harvest there} Nf6 $11 35. Nd4+ Kd5 36. Nf5 g6 (36... Nh5) 37.
Ne3+ Kc6 38. Kd4 h5 $2 (38... b5 39. a5 Kd6 40. a6 Kc6 41. f5 Ne8 $11 (41...
Kb6 42. Ke5 $18)) (38... Nd7 39. Ng4 f6 40. h4 h5 41. Ne3 Nf8 42. f5 gxf5 43.
b5+ Kd6 44. Nxf5+ Kd7 45. Ng7 Kd6 46. Nxh5 Ng6 47. Nxf6 Nxh4 $11) 39. Ke5 (39.
Nc4 $18 {as the f pawn is lost.} Nd7 {keeps the K out for the moment but
allows a winning N swap} (39... Kc7 40. Ne5 Kd6 41. Nxf7+ Ke6 42. Ng5+ (42. Ne5
Nd5 43. Nxg6 (43. a5 {also}) 43... Nxb4 44. Kc4 Nd5 45. f5+ Kd6 46. Kd4 {
Zugzwang-Komodo14 Endgame})) 40. Ne5+ Kc7 41. Nxd7 Kxd7 42. Ke5 Ke7 43. a5)
39... Nd7+ 40. Kd4 (40. Ke4 Nf6+ 41. Kd4 Nd7 42. h4 Kd6 43. Nc4+ $18 {Komodo14
Endgame}) 40... Nf6 (40... b5 $11) 41. Ke5 (41. Nc4 $18) (41. b5+ Kb7 42. Nc4
Ne8 43. Ke5 $18) 41... Nd7+ 42. Kd4 Nf6 {twice repeated position, but Wh still
can win with Nc4 or b5} 1/2-1/2
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.12"]
[Round "2.10"]
[White "Holman, Sam"]
[Black "Osinga, Awne"]
[Result "1-0"]
[ECO "C66"]
[WhiteElo "1386"]
[BlackElo "1343"]
[Annotator "kemen"]
[PlyCount "97"]
[EventDate "2021.??.??"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. h3 {cautious , avoiding a B pin} (4. d4 {main}
) (4. O-O {next, Holman vs Tegwyn Jones,Greenwood, Belochkin, 3-0}) (4. c3 {
next, J van Kemenade -Osinga 3-0, Leah -Osinga ,1-0; Corrigan-Osinga 0-1}) 4...
Bd7 5. c3 (5. O-O) 5... Nf6 6. d3 h6 7. O-O Be7 8. Re1 O-O 9. Nbd2 {a standard
slow Ruy Lopez structure} a6 10. Ba4 Qc8 {there is no real threat in a
sacrifice on h3; 4 Wh wins, 1 draw} (10... Nh7) (10... b5) (10... Re8 {main
lines}) 11. Nf1 Nd8 $146 (11... b5 12. Bc2 {5 Wh wins, 1 draw} Nd8) 12. Bb3 (
12. Bc2) 12... Be6 13. Bc2 $16 {the coming Wh K side attack has lots of
potential, in which the lurking wh B plays a key role,along with threats of N
invasion} c5 14. Ng3 (14. d4 $16) 14... Nc6 15. Be3 {An imprecision. This B is
best left looking at h6 from a distance, It is not needed to enforce d4 , &
the tempo loss allows Bl to strike in the centre first} (15. d4 $14) 15... Nh7
(15... d5 $11 {and the Bon e3 itself becomes a target for a pawn advance to d4
, or after exd5, Nxd5.}) 16. d4 $16 {back on course} exd4 17. cxd4 cxd4 18.
Nxd4 Nxd4 19. Bxd4 Rd8 (19... Bf6 20. Nh5 Be5 21. f4 Bxd4+ 22. Qxd4 Qc5 23.
Qxc5 dxc5 24. f5 Bc4 25. e5 $16 {Stockfish12}) 20. Rc1 $18 (20. Nh5 $18 {
forces weakening of the K side}) 20... Qd7 21. Qd3 (21. Nh5 {Stockfish12} g6
22. Nf4 Nf8 23. Qd2 Kh7 24. Bc3 Rac8 25. Qd4 $18 {the Bl pieces are just
huddled together, while Wh brings more and more into the attack}) 21... Nf8 (
21... Qb5 {Stockfish12} 22. Qxb5 (22. Qd2 Bf6 (22... Bxa2 23. b3 {traps the B})
23. Ne2 Bxd4 24. Nxd4 Qxb2 25. e5 Kh8 26. Nxe6 fxe6 27. exd6 Qxa2 28. Red1 $14)
22... axb5 23. a3 $16) 22. Nf5 (22. Nh5 {is also very powerful} g6 (22... f6
23. Qg3) 23. Nf6+ Bxf6 24. Bxf6 Rdc8 25. Qd2 Kh7 26. Bc3 Qe7 27. Qd4 f6 28. a4
Kg7 29. Rcd1 $18 {the Bl position has too many weaknesses to survive for long})
(22. Bxg7 {seems to work as well. but Wh has to be playing on trust in his
judgement rather than a clearcut long analysis} Kxg7 23. Nh5+ Kg8 24. Qc3 $1 {
better than Qd4} f6 25. Qg3+ Kf7 26. e5 fxe5 27. Qg7+ Ke8 28. Bg6+ Nxg6 29.
Qxg6+ Bf7 30. Ng7+ Kf8 31. Qxh6 Kg8 32. Rc3 Bf8 33. Rg3 Bg6 34. Rxg6 Bxg7 35.
Re4 Qf7 36. Reg4 Rd7 37. Rxg7+ Qxg7 38. Rxg7+ Rxg7 39. Qxd6 {Stockfish12-and
the Q with the advancing K side pawns will outweigh the Rs}) 22... Bxf5 23.
exf5 f6 {the usual problem against 2 Bs- block one & the other comes in} (23...
Bg5 {though seems not much better} 24. Qg3 Nh7 25. Bxg7 Kxg7 26. h4 f6 27. Bb3
Rac8 28. hxg5 hxg5 29. Rcd1 Rc5 30. Bd5 Nf8 31. Qe3 Rdc8 32. Qe7+ Qxe7 33.
Rxe7+ Kh6 (33... Kh8 34. Rd3) 34. Rf7 Nh7 35. Rd3 g4 36. Rd4 Rg8 37. Rxb7 $18 {
the Bl pieces remain in inferior postions to their Wh counterparts}) 24. Bb6 (
24. Qe4 Re8 (24... d5 {Stockfish12 gives up a piece as best try for Bl}) 25.
Qd5+ Kh8 26. Bb3 Nh7 27. Bb6 Rac8 28. Rxc8 Rxc8 29. Qf7 Re8 30. h4 {
Stockfish12- Zugzwang, a position that returns in later developments}) 24...
Rdc8 25. Qd5+ (25. Qe4 Re8 26. Qd5+ Kh8 27. Bb3 Nh7 28. Rc7 $18 {Stockfish12})
25... Kh8 26. Bb3 Nh7 27. Rxc8+ Rxc8 28. Kh2 (28. Qf7 {wins quickly} Re8 29. h4
d5 30. Qxd5 {and Zugzwang- Stockfish12}) 28... Rf8 29. Rc1 (29. h4) 29... Bd8
30. Bxd8 (30. Bc5 Bc7 31. Be3 Bb8 32. Bb6 Ng5 33. f4 Nf7 34. Qe6 Qb5 35. Rc8
$18 {Stockfish12}) 30... Rxd8 31. Qe6 Ng5 32. Qd5 (32. Qxd7 Rxd7 33. Rc8+ Kh7
34. Bg8+ Kh8 35. Bf7+ Kh7 36. Bg6#) 32... Qe7 33. h4 Nh7 34. Qe6 Qf8 35. Rc7
Re8 36. Qd5 (36. Qd7 {also}) 36... b6 37. Qb7 (37. Rf7 Qg8 38. Qxd6 Ra8 (38...
Rb8 39. Qc7) 39. Rb7 Qd8 40. Qg3 Qf8 41. Rxb6 $18 {Stockfish12-the Bl pieces
are stationary}) 37... Rb8 38. Qxa6 d5 39. Qa7 d4 40. g3 (40. Rxg7 {overloaded
Q} Qxg7 41. Qxb8+ Nf8 42. Qxb6) 40... d3 41. Rf7 Qg8 42. Rxg7 Qxg7 43. Qxb8+
Nf8 44. Qxb6 Nd7 45. Qd4 (45. Qd8+ Kh7 46. Bg8+ Qxg8 47. Qxd7+ Qg7 48. Qxd3 {
Stockfish12- Wh has too many pawns for Bl to survive}) 45... Ne5 46. Bd1 (46.
Qd5) 46... h5 47. Bxh5 (47. b4 {running the distant pawns}) 47... Qh6 48. Bd1 (
48. Qd8+ Kg7 49. Qe7+ Kg8 50. Qe8+) 48... Qf8 49. f4 1-0
Friday, 8 January 2021
Closed Reopens
On Tuesday 5 January five Aberystwyth players took part in the first round of the online version of the popular Dyfed Closed tournament normally held over a weekend in November. Rudy van Kemenade had an easy time against John Miller's French, regularly picking up loose material for an early victory. Adam Watkin-Jones played rather passively in a Pirc against Robert Lovegrove, and came under pressure in a queenless middlegame. resigning somewhat prematurely after dropping a pawn. Tom Gunn fell victim early on to Martin Jones's marauding knight in a Queen's Pawn Game. Sam Holman's Slav against Ben Brewer was an exciting struggle from the first, with both players making mistakes, but ended abruptly when Sam allowed a mate in one. In the longest game of the first round I had Black in a French Exchange against Awne Osinga. There was a protracted period of rather pointless manoeuvring in the middle game, but the bishop ending was more exciting, as White missed a chance to go a pawn up, then pressed too hard for a win in a dead drawn position, allowing a neat finish. Two Aber players are on 1, and three on 0.
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.05"]
[Round "1.3"]
[White "Van Kemenade, R."]
[Black "Miller, John S"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "1999"]
[BlackElo "1549"]
[Annotator "kemen"]
[PlyCount "53"]
[EventDate "2021.??.??"]
{an automatic move, Wh had actually prepared a different line!} 1. e4 e6 2. d3
d5 (2... c5 {J Van Kemenade-Miller, 6-0}) 3. Qe2 d4 (3... Ne7 4. Nf3 c5 {
J Van Kemenade-Miller, Dyfed League 2016,1/2-1/2}) (3... Nf6 {main}) 4. Nf3 (4.
g3 e5 5. Nf3 Bd6 6. Bg2 Bg4 7. Nbd2 Nc6 8. h3 Be6 9. O-O f6 10. Ne1 {J Van
Kemenade-Miller, Dyfed League 2019,1-0}) 4... c5 5. g3 Nc6 6. e5 {main , 72 %
for Wh in databases; a position Rudy has played a number of times in internet
games} (6. Bg2 e5 {47% for Wh} 7. h3 Nge7 8. Nbd2 Qc7 9. a4 f6 10. Nc4 Be6 11.
Nfd2 {J Van Kemenade-Miller, N Dyfed-S Dyfed 2014,1/2-1/2}) 6... Nge7 7. Bg2
Bd7 (7... Ng6) (7... Nd5 {main lines}) 8. O-O Nd5 9. c4 {Stockfish12} (9. Re1
Be7 10. Nbd2 Qc7 $11 {though 1-3 in actual games}) 9... Nc7 {perhaps a bit
passive, though it can support .. b5, often played by Bl to get Q side play} (
9... dxc3 10. bxc3 Be7 11. c4 Nb6 12. Nc3 O-O $16 {Stockfish12; may give Bl
better chances, though the B on d7 obstructs the d file for Bl}) 10. h4 (10.
Nbd2 Be7 11. Ne4 O-O 12. g4 $16 {threatening g5 & a sacrifice on f6 is givenn
by Stockfish12}) 10... Be7 11. a3 {in case Bl has ideas of 0-0-0, but a bit
slow} (11. Bf4) 11... O-O 12. Nbd2 f5 {Stockfish12} 13. exf6 Bxf6 {leaves a
number of weak squares} (13... gxf6 14. b4 cxb4 15. axb4 Bxb4 16. Nxd4 Nxd4 17.
Qg4+ Kh8 18. Qxd4 $18 {Stockfish12- but at least Wh does not get the standard
K side attack}) 14. Ne4 $18 e5 {drops a pawn, but, perhaps more importantly,
exacerbates the wh square weaknesses} (14... Be7 15. Bf4 $18 {Stockfish12}) (
14... b6 15. b4 $18 {Stockfish12}) 15. Nxc5 Bf5 (15... Rb8 16. Nxd7 Qxd7 17.
Nd2 b5 18. cxb5 Rxb5 19. Qe4 Nd8 20. Nc4 $18 {Stockfish12- Wh is a pawn up and
the f6 B is a spectator}) 16. Nxb7 Qc8 (16... Qe7 17. Ng5 {and the N on b7
escapes}) 17. Nd6 Qd7 18. Nxf5 Qxf5 19. Ng5 (19. Nd2) (19. Nh2 {keeps the N})
19... Qd7 (19... Bxg5 {had to be tried- even though Wh keeps 2 useful Bs}) 20.
Nxh7 (20. Qe4 {also, Stockfish12 slightly prefers it} Bxg5 21. Bxg5 Ne7 22.
Rae1 $18) 20... Kxh7 21. Qe4+ Kg8 22. Qxc6 Qe7 23. Qe4 (23. b4) (23. Bd2) 23...
Rab8 24. Bd2 {the Bs control the board} Ne6 25. Bb4 (25. Qg4 {Stockfish12})
25... Nc5 26. Qd5+ Kh8 27. Bxc5 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.05"]
[Round "1.4"]
[White "Lovegrove, Robert"]
[Black "Watkin-Jones, Adam"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "1500"]
[BlackElo "1918"]
[Annotator "kemen"]
[PlyCount "50"]
[EventDate "2021.??.??"]
{[%evp 0,50,32,30,89,64,91,87,74,61,90,78,78,0,-5,15,-4,-4,-2,-15,-16,-2,-18,5,
9,10,28,25,27,26,43,49,51,50,43,48,62,36,85,82,80,77,107,105,91,85,97,93,88,87,
203,96,170]} 1. e4 d6 2. d4 g6 3. Nf3 Bg7 4. Bc4 (4. Be3 Nf6 5. Bd3 Nc6 6. c3
e5 7. dxe5 Nxe5 8. Nxe5 dxe5 9. h3 O-O 10. O-O Nh5 {Orton vs Watkin-Jones,
Dyfed League 2018,0-1}) (4. Nc3 {main}) 4... c6 (4... Nf6) (4... e6) 5. Bb3 Nf6
6. e5 (6. Qe2 {main}) 6... dxe5 7. Nxe5 O-O 8. O-O Nbd7 9. Bf4 $146 {no
consesus about alternative moves played here} (9. Nc3 $14 {Stockfish12}) 9...
Nh5 (9... Nd5 {also}) 10. Nxd7 Qxd7 11. Be3 Qf5 (11... c5 $11 {Stockfish12})
12. Nd2 Rd8 (12... Nf4 13. c3 Nd5 14. Re1 Nxe3 15. Rxe3 e6 16. Nc4 b6 $11 {
Stockfish12}) 13. c3 Be6 14. Qf3 (14. Bxe6 Qxe6 15. Re1 $14 {Stockfish12})
14... Bd5 (14... Bxb3 15. axb3 Qxf3 16. Nxf3 Nf6 $11 {Stockfish12}) 15. Qxf5
gxf5 {the pawn structure is just a little unstable for Bl} 16. Bd1 (16. g3) (
16. Nc4) 16... Nf6 17. Re1 Be6 18. Bc2 (18. Nf3 $14) 18... h6 19. Nf3 Nd5 20.
Bd2 (20. Nh4 f4 21. Bd2 c5 22. Nf3 cxd4 23. Nxd4 Bg4 $11 {Stockfish12}) 20...
Rd7 {Stockfish12} (20... a5) 21. Ne5 (21. Nh4 $16 {Stockfish12} f4 22. Nf5 (22.
Ng6 c5 23. Ba4 Rdd8 24. dxc5 Nb6 25. Nxe7+ Kh8 26. cxb6 Rxd2 27. Ng6+ fxg6 28.
Rxe6 Rxb2 29. Bb3 a5 30. h4 $16 {a wild Engine variation}) 22... Bf8 23. Nh4
$16 {Stockfish12}) 21... Rdd8 22. Ng6 fxg6 {Bl is best leaving this alone,
even though it unites the pawns, the Wh central pressure increases} (22... a5
$14) 23. Rxe6 Kf7 24. Rae1 $16 Rd7 25. Bb3 (25. g4 $18 {Stockfish12; breaks
open the K side, while Bl's QR is still AWOL}) 25... Bf6 $2 (25... Re8 26. h3
$16) (25... Bf6 26. Bxh6 {wins a pawn; resignation looks a bit early, but the
B can't be trapped and Bl will continue to suffer in a passive position a pawn
down} g5 27. f4 g4 28. Bc2 (28. Bg5 Rd6 29. Rxe7+ Bxe7 30. Rxe7+ Kg6 31. Re5
Rf8 32. Bc2 {Stockfish12- the 2 Bs outgun the R & N}) 28... Kg6 29. Bg5 Nc7 30.
R1e5 Nxe6 31. Bxf5+ Kg7 32. Rxe6 $18 {Stockfish12}) 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.05"]
[Round "1.6"]
[White "Gunn, Tom"]
[Black "Jones, Martin C"]
[Result "0-1"]
[ECO "D04"]
[WhiteElo "1398"]
[BlackElo "1725"]
[Annotator "kemen"]
[PlyCount "36"]
[EventDate "2021.??.??"]
{[%evp 0,36,19,31,25,26,45,6,15,5,30,3,23,6,10,-16,16,-33,-33,-55,-53,-421,
-435,-435,-459,-467,-371,-371,-352,-360,-348,-414,-415,-443,-467,-534,-458,
-706,-736]} 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Bd3 O-O 5. O-O d5 (5... d6 {main}
6. c4 Nbd7 7. Re1 e5 8. Nbd2 Ng4 9. h3 Nh6 10. d5 f5 11. e4 f4 {Gunn-Millere,
Dyfed League 2020,0-1}) 6. c4 (6. Nbd2) 6... c5 (6... c6 {main, is a
Shlechter-Grunfeld}) 7. cxd5 (7. Nc3 {transposes to a Grunfeld line}) 7... Nxd5
8. dxc5 (8. Nc3 $11 {back to Grunfeld}) 8... Nb4 {1 draw, 3 Bl wins} 9. Bc2 (9.
Be4) (9. Be2 {played}) 9... N8a6 10. Qd2 $2 (10. a3 Qxd1 11. Bxd1 Nd3 12. Nc3
Naxc5 $19 {the Wh pieces are passively placed compared with Bl's}) 10... Qxd2
11. Nbxd2 Nxc2 12. Rb1 Ncb4 (12... Nxc5) 13. a3 Nd3 14. b4 Bd7 (14... Rd8) 15.
Nc4 Bb5 (15... Be6) 16. Nfd2 Rfd8 17. Rd1 Rac8 18. Nb2 Nxc1 {a N must fall} 0-1
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.05"]
[Round "1.7"]
[White "Brewer, Ben"]
[Black "Holman, Sam"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "1679"]
[BlackElo "1386"]
[Annotator "kemen"]
[PlyCount "35"]
[EventDate "2021.??.??"]
{[%evp 0,35,25,28,14,-17,20,-3,4,10,10,21,-3,-1,11,26,19,40,63,41,101,143,123,
75,163,189,182,-52,6,31,235,284,255,141,144,144,29999,-30000]} 1. d4 d5 2. c4
c6 3. g3 Nf6 4. Nf3 Bf5 {main} 5. Nc3 e6 6. Bg2 (6. Nh4 {main, a more recent
fashion}) 6... Bb4 (6... Nbd7) 7. O-O dxc4 (7... O-O) 8. Ne5 Nd5 (8... O-O) (
8... Nbd7 {are safer lines}) 9. e4 $18 {Cloud Engines} (9. Bd2 Nb6 10. e4 Bg6
11. Nxg6 hxg6 12. d5 {Ambroz-Dostal,CZE ch tm 2006,1-0}) 9... Nxc3 (9... Bxc3
10. exf5 Ba5 11. fxe6 fxe6 12. Qh5+) 10. bxc3 Bxc3 11. Rb1 (11. exf5 $1 $18 {
Stockfish12}) (11. Ba3 $18 {Stockfish12}) (11. Nxf7 Kxf7 12. Rb1 $18 {
Stockfish12}) 11... Qxd4 (11... Bg6 {is better, though} 12. Be3 b5 13. h4 $18 {
Stockfish12}) 12. Nxf7 $1 $18 {Stockfish12 top choice} (12. Ba3 $18) (12. Rxb7
$18) 12... O-O 13. Nd6 $2 {lets Bl off the hook} (13. exf5 $1 Rxf7 14. fxe6
Rxf2 15. Qxd4 Rxf1+ 16. Kxf1 Bxd4 17. Rxb7 $18 {Bl's pieces are uncoordinated
(though nominally half a pawn up)}) (13. Qxd4 Bxd4 14. exf5 Rxf7 15. fxe6 Re7 (
15... Rf6 16. Rxb7 $18) 16. Rd1 Rxe6 (16... Bb6 17. Rxb6 $18) 17. Rxd4 $18)
13... Bg6 (13... Qxd1 $19 {Stockfish12} 14. Rxd1 Bg4 15. f3 (15. Rf1 b5 $19)
15... Bxf3 16. Bxf3 Rxf3 17. Nxc4 (17. Rxb7 Rd3 $19) 17... b5 18. Nd6 Na6 19.
Kg2 Rff8 {now Bl is 2 safe pawns up and ready for piece action}) 14. Rxb7 Qc5 {
to hold on to the c pawn, but Bl is playing 2 pieces down} (14... Rd8 15. Qxd4
Bxd4 16. Nxc4 Nd7 $14 {Stockfish12}) 15. Be3 Qa3 16. Qc2 (16. Bh3 $18 {
Stockfish12}) (16. e5 Bxe5 17. Nxc4 Qa6 18. Qb3 $18 {Stockfish12}) 16... Qxd6
17. Qxc3 Qd3 $2 {Bl has controlled the long diagonal for a long time, so
forgets this is no longer the case} (17... Nd7 18. Qxc4 $18 {and the 3
isolated pawns will prove impossible to hold, even though on paper material is
equal.}) 18. Qxg7# 1-0
[Event "Dyfed Online Closed"]
[Site "Lichess"]
[Date "2021.01.05"]
[Round "1.8"]
[White "Osinga, Awne"]
[Black "Francis, Matthew"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "1343"]
[BlackElo "1648"]
[Annotator "kemen"]
[PlyCount "160"]
[EventDate "2021.??.??"]
{[%evp 0,160,16,48,67,33,37,23,39,39,26,33,18,11,19,-17,3,-23,26,15,34,47,55,
55,44,10,34,37,16,14,77,71,104,54,58,20,4,-37,9,-25,-31,-22,-10,-50,-18,-12,5,
-49,4,-34,-34,-50,-12,-4,-6,7,20,-6,-6,-6,6,-6,22,17,22,11,29,37,49,55,58,8,21,
27,55,1,44,50,58,2,0,-12,-11,-11,0,0,0,-85,-44,-41,-40,-51,-56,-55,-17,-19,-2,
-2,20,66,69,77,78,81,78,81,99,34,67,18,41,68,71,32,11,32,32,32,0,0,0,0,0,-38,
-28,-33,0,0,0,0,0,0,0,0,0,0,0,-519,-515,-508,-465,-884,-881,-937,-947,-947,
-990,-990,-1010,-1006,-1236,-1407,-1925,-2228,-29980,-29987,-29990,-29995,
-29996,-29997,-29998,-29999,-30000]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6
(4... Bd6 {main} 5. Nc3 c6 6. Bd3 Ne7 7. O-O Bf5 8. Bxf5 Nxf5 9. Re1+ Ne7 10.
Ne2 O-O 11. Bf4 Bxf4 12. Nxf4 Nd7 {Osinga-Francis, Dyfed League 2014, agreed
drawn on move 29}) 5. Bd3 Bd6 6. O-O O-O 7. Bg5 h6 (7... Bg4) 8. Bh4 c6 (8...
Bg4 {main}) 9. Re1 Nbd7 10. Nbd2 Qb6 $146 (10... Qc7 11. c3 {2 Wh wins, 4
draws, 2 Bl wins}) 11. Rb1 Qc7 12. Nf1 (12. c4 $16 {Stockfish12- Bl's entire Q
side lies undeveloped, so Wh can open up with tactics in the centre}) 12... b6
(12... Re8) 13. Bg3 Bxg3 14. Nxg3 Qd8 15. c3 (15. Ne5 $16 {Stockfish12}) 15...
c5 16. Rc1 (16. Ne5 $16 {Stockfish12}) 16... Bb7 17. Bb1 (17. Qd2 $18 {
Stockfish12- Wh has a lot of forces aimed at the K, & a N getting to f5 will
presage a winning N sacrifice or two ( also the Wh Rs are ready to join in)})
17... Re8 18. Qd2 (18. Ne5 $16 {any exchange on e5 drives away the f6
defender- in the meantime a N on e5 is a coniuous threat against f7}) 18... Qc7
19. Re2 (19. Nh4) 19... Rxe2 20. Qxe2 Re8 21. Qd3 cxd4 (21... Qf4 22. Rd1 g6
$11 {Stockfish12}) 22. Nxd4 {the d pawn is a permant weakness now, though , as
usual, there is a bit of piece activity to compensate} (22. Qxd4) 22... Nc5 23.
Qd1 (23. Qf3) 23... Qe5 (23... Nfe4) (23... Qf4) 24. Nf3 Qf4 25. Qc2 Nce4 26.
Ne2 Qc7 27. Ned4 Ba6 28. h3 {Bl has nothing much, but at least control over e4
has held of a Wh K side assault} Nc5 29. Qd2 Nfe4 30. Qe3 (30. Re1 Kf8 31. Qd1
Qf4 32. Re3 $14 {Stockfish12}) 30... Qd8 31. Re1 Nf6 32. Qd2 Rxe1+ 33. Qxe1
Nce4 (33... Qe8 34. Qd2 Nfe4 $11) 34. Nc6 (34. Ne5 Bb7 35. f3 Nd6 36. Bd3 $14 {
Stockfish12}) 34... Qc7 35. Nce5 (35. Nfd4) 35... Qd6 36. Bc2 Nc5 37. Ng4 Nce4
(37... Bd3 38. Nxf6+ Qxf6 39. Bxd3 Nxd3 40. Qd2 Qg6 41. Nd4 $11) (37... Nxg4 $2
38. Qe8+ Qf8 39. Bh7+ Kxh7 40. Qxf8 $18) 38. Nxf6+ Nxf6 39. Nh2 {trying for a
Ng4 again, but it releases the d5 pawn from its ssseclusion} (39. Qe3 $14) (39.
Qe5 Qxe5 40. Nxe5 $14 {looks even simpler}) 39... d4 $11 40. Ng4 (40. cxd4 Qxd4
41. Qc1 Bb7 42. Bb3 Qe4 43. Nf3 $11 {Stockfish12}) 40... d3 $5 {double-edged-
the pawn might be a winning assett or a weakness that gets lost} (40... dxc3
41. Nxf6+ gxf6 (41... Qxf6 $2 42. Qe8#) 42. Qxc3 $11) 41. Nxf6+ Qxf6 42. Qe8+
Kh7 43. Qe4+ (43. Bb3 d2 44. Qd7 Qf4 45. Bc2+ g6 46. b3 Kg7 47. Bd1 Qg5 48. g3
Qf6 49. Qxd2 $16 {Engines love living on the near edge of disaster}) (43. Bd1
$11) 43... Qg6 44. Qxg6+ Kxg6 45. Bb3 d2 (45... h5 46. f3 Kg5 47. g3 h4 48. Kf2
f6 49. gxh4+ Kxh4 50. Ke3 Bb7 51. f4 Kg3 52. Bd1 Bg2 $17 {the centre pawn is
sacrificed to allow K entry on the K side}) 46. Bd1 Kf5 (46... h5) 47. f3 Kf4 (
47... h5) 48. Kf2 g5 49. g3+ Ke5 50. Ke3 Bf1 (50... Bc4 51. a3 (51. b3 Be6)
51... Be6 52. h4 gxh4 53. gxh4 Ba2 54. Kxd2 Kf4 55. b3 Bb1 56. b4 Kg3 57. h5
Kf4 58. c4 Bf5 59. Kc3 Ke5 60. Ba4 Be6 61. c5 f5 $14 {Stockfish12-possibly
with holes in there somewhere}) 51. h4 $18 gxh4 52. gxh4 Kf5 53. Kxd2 (53. Bc2+
{Stockfish12} Ke5 54. f4+ Kd6 55. Kxd2 $18 {the Bl K has been driven back})
53... Kf4 $11 54. Bb3 (54. Ke1 Bc4 55. b3 Bd3 56. Kf2 $11) 54... f6 55. Bd5 h5
(55... Kg3 56. h5 Bb5 57. b4 Be8 58. c4 Bxh5 59. c5 bxc5 60. bxc5 Bg6 $11) 56.
b4 (56. Ke1 Bb5 57. Kf2 $18 {Stockfish12}) 56... Kg3 $11 {Wh has twice allowed
the Bl K unnecessary activity} 57. c4 {this comes close to winning, but, it
transpires, just a tempo short} Kxh4 58. c5 bxc5 59. bxc5 Ba6 (59... Kg3 60.
Ke3 Bh3 61. f4 h4 62. c6 Bc8 $11 {Stockfish12}) 60. Be6 (60. Bf7 Kg5 61. Ke3
Bb5 62. Bd5 h4 63. c6 $11 {Stockfish12}) 60... Kg3 61. Ke3 Bb7 62. Bd7 h4 63.
c6 Ba6 64. c7 h3 65. f4 h2 66. Bc6 Bc8 $11 67. a4 a5 68. Kd4 $2 {a final
attempt at winning, but Wh , at the end of a long game, has overlooked the
role of a hitherton neglected part of the board- the f pawn} (68. Bh1 $11)
68... Kxf4 $19 69. Kc5 Ke3 70. Kb6 f5 {rejoicing in its liberation} 71. Kxa5 (
71. Ka7 f4 72. Kb8 Bf5 73. c8=Q Bxc8 74. Kxc8 f3 75. Bxf3 Kxf3 76. Kb7 h1=Q 77.
Ka6 {is far too slow}) 71... f4 72. Kb6 f3 73. Bb7 Bf5 (73... Bxb7 74. Kxb7 f2
75. c8=Q h1=Q+ {also works, but needs a lot of careful calculation, best left
to Engines if it can be avoided}) 74. a5 h1=Q 75. a6 Qb1+ 76. Ka7 f2 77. Kb8
f1=Q 78. a7 {2 Qs down, but , Wh is still alive} Qxb7+ {ends it all} 79. Kxb7
Qb5+ 80. Ka8 Be4# 0-1
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