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