Back in Business

The Aberystwyth team is off to a good start in the New Year. On Monday 14 January we faced Steynton B at the Emylyn Cafe, Tanygroes. Rudy van Kemenade, playing the White side of a Sicilian on top board based his strategy round the domination of the black squares, especially d6, and it paid off in the end, though Mark Paffard missed his chance to get back in the game. I'm not sure why a positional player like Adam Watkin-Jones is so keen on the sharp Modern Defence, but it serves him well; this time he grabbed a pawn early against Jon Coles, and went on to dominate the game. Julie van Kemenade, on the other hand, loves double-edged positions, and she certainly got one against John Miller's French, with both players trying to queen pawns. In that situation, you'd generally back Julie to win, and she succeeded here after an exciting struggle. James Cook was thrown by Scott Hammett's choice of Larsen's Opening rather than his usual Bird's, and went wrong as early as move 2, dropping a pawn. As often happens in such situations, the setback made him reckless and he followed it up with an unsound piece sacrifice. The match finished 3-1 to Aber.

Our first home match of the season was against Cardigan B, who were missing one player. Rudy had a hard fight in a Dutch Defence against the rapidly improving Ben Brewer, reaching an equal middlegame with chances for both sides, but his greater experience told as White made an error that allowed him to invade the king position with his major pieces. It was a similar, but quieter story in the English Opening game between Adam and Josh Brewer. There was nothing in it till White seized his chance to win a key central pawn, after which Black fought hard but in vain to save the endgame. I don't often win positions with a good bishop against a bad one - somehow the so-called bad bishop usually turns out to be more useful than its reputation. Against Awne Osinga in a Sicilian, however, I took advantage of a bishop so bad that at one point all seven of White's pawns were on the same colour. With White reduced to passivity, I was able to take control of the position and force a won ending. With the default on Board 4, this was a 4-0 win to Aber.

[Event "Dyfed League:SteyntonB-Aberystwyth"] [Site "?"] [Date "2019.01.14"] [Round "?"] [White "Van Kemenade, R."] [Black "Paffard, Mark"] [Result "1-0"] [ECO "B40"] [WhiteElo "2021"] [BlackElo "1739"] [Annotator "kemen"] [PlyCount "69"] [EventDate "2019.01.15"] {[%evp 0,10,26,16,44,34,34,12,33,0,67,16,18]} 1. e4 c5 2. Nf3 e6 3. d3 Nc6 4. g3 g6 5. Bg5 f6 (5... Qc7 6. Bg2 Bg7 (6... h6 7. Be3 d6 8. O-O Bg7 9. c3 { Van Kemenade-Surtees, British Rapid 2018,1/2-1/2}) 7. c3 e5 (7... Nge7 8. O-O d6 9. Na3 a6 10. d4 {main, Van Kemenade-Sarakauskas, British Rapid 2018,0-1}) 8. O-O d6 9. Na3 Be6 10. d4 {Van Kemenade-Williams, Dyfed League 2018,0-1}) 6. Be3 b6 {uncommon} (6... d5 7. exd5 exd5 8. d4 {main}) (6... d6 7. Bg2 Bg7 8. d4 cxd4 9. Nxd4 Nxd4 10. Qxd4 Ne7 11. Nc3 O-O 12. O-O-O f5 13. Qxd6 Qxd6 14. Rxd6 fxe4 15. Rhd1 {Miroshnichenko-Antal, Hotel Zuglo op Budapest 1999,1-0}) 7. Bg2 Bb7 (7... Bg7 8. O-O Nge7 9. d4 (9. Nc3 O-O 10. d4 cxd4 11. Nxd4 Nxd4 12. Bxd4 Bb7 13. Qe2 Nc6 14. Be3 f5 {Polyanskaya-Dimov, Moscow ch U18,2010,1-0}) 9... cxd4 10. Nxd4 Nxd4 11. Bxd4 Nc6 12. Bc3 O-O 13. Nd2 Ba6 14. Re1 {Van Kemenade- Valette,Chess Arena 2018,1-0}) 8. O-O Bg7 (8... Nh6 9. Nh4 Nf7 10. f4 Qc7 11. Nc3 O-O-O 12. a3 $14 {Makropoulos-Tsiknopoulos, GRE ch Athens 1971,1-0}) 9. d4 {opening up the position as Wh is ahead in development & looking at d6} (9. Nc3 Nge7 10. Qc1 O-O 11. Bh6 d6 12. Bxg7 Kxg7 13. Qd2 e5 {Wilk-Suliborski,Gdansk op 2010,0-1}) (9. c3 {alternative, to take back with the pawn on d4}) 9... cxd4 10. Nxd4 Nxd4 11. Qxd4 Ne7 (11... Nh6 $5 {Komodo12 & Stockfish10}) 12. Nc3 (12. Na3 Bc6 13. Rad1 O-O 14. Qb4 f5 $14 {Stockfish10}) 12... O-O 13. Rad1 Bc6 14. f4 $16 (14. Qd2 $16) (14. Qb4 $16 {Stockfish10}) 14... Qc7 15. a4 (15. Qb4 Rfe8 (15... d5 16. exd5 Nxd5 17. Nxd5 Bxd5 18. Rxd5 exd5 19. Bxd5+ Kh8 20. Bxa8 Rxa8 21. Qe4 Rd8 22. f5 $16 {Stockfish10}) 16. Nb5 Bxb5 17. Qxb5 Rad8 18. c3 $16 { Stockfish10}) 15... Rfd8 (15... f5 16. e5 Bxg2 17. Kxg2 Qb7+ 18. Kg1 d5 19. Qd3 Nc6 20. Nb5 Rfd8 $11 {Stockfish10}) 16. Qc4 (16. Nb5 Bxb5 17. axb5 Rac8 (17... Qxc2 18. Qb4 (18. Rc1 Qb3 19. Rc7 Qxb5 $11) 18... Bf8 19. Rc1 a5 (19... Qe2 20. Qb3 Qg4 21. Bd4 f5 22. h3 Qh5 23. exf5 $18) 20. Rxc2 axb4 21. Bxb6 Rdb8 22. Bd4 Rxb5 23. Bxf6 Kf7 24. Bd4 $14 {Stockfish10})) 16... Rac8 17. Rf2 (17. Nb5 Bxb5 18. Qxb5 d5 19. exd5 Nxd5 20. Bxd5 exd5 21. c3 $14 {Stockfish10}) 17... Qb7 18. Rfd2 (18. Nb5 Bxb5 19. Qxb5 $16 {Stockfish10}) 18... f5 (18... d5 19. Qb3 $1 $18 {intended}) 19. Qb4 Kf7 (19... Bxc3 20. Qxc3 fxe4 (20... Bxe4 21. Qe5 Kf7 22. Bd4 Rg8 23. Bc3 (23. Qf6+ Ke8 24. Bxe4 Qxe4 25. c3 Rc6 26. Qh4 h5 27. Kf2 $16) 23... Rxc3 (23... Ke8 24. Bxe4 Qxe4 25. Rxd7 $18) 24. Bxe4 Qxe4 25. Qxc3 Rc8 26. Qe5 $16 {Stockfish10}) 21. Qe5 Nf5 22. Bd4 Nxd4 23. Rxd4 Bd5 24. Qg5 Rf8 25. Bxe4 Bxe4 26. Rxd7 Qc6 27. Qh6 Qc5+ 28. Kf1 Rf7 29. Rxf7 Kxf7 30. Qxh7+ Ke8 31. Qg8+ Ke7 32. Qg7+ Ke8 33. Qg8+ $11 {Stockfish10}) 20. e5 {Wh's strategy had been based on playing this & keeping the d pawn tied down- byt Stockfish 10 doesn't think much of it} (20. Bd4 Bxd4+ 21. Qxd4 a6 (21... d5 22. Qf2 fxe4 23. Bxe4 Nf5 24. Bxf5 exf5 25. b3 a6 26. Ne2 $16 {Stockfish10})) (20. Nb5 Bxb5 21. axb5 $16 {Stockfish10- considered}) (20. Nd5 {considered} Bf8 $11 {Stockfish10} (20... exd5 21. exd5 $16)) 20... Bxg2 21. Rxg2 Bf8 (21... d6 $1 $17 {Stockfish10- when a pawn that has been under restraint is actually able to move, it usually does some damage- Nimsovitch ( more or less)} 22. Nb5 (22. Rxd6 Nc6 23. Qc4 (23. Qa3 Bf8 24. Nb5 a6 25. Qb3 axb5 26. Qxe6+ Kg7 27. axb5 Bxd6 28. Qf6+ Kg8 29. exd6 Qf7 (29... Na5 30. Bd4 $18) 30. Qxf7+ Kxf7 31. bxc6 Rxd6 32. c3 (32. Bxb6 Rd1+ 33. Kf2 Rxc6 34. Be3 Rxc2+ 35. Kf3 Rf1+ 36. Rf2 Rfxf2+ 37. Bxf2 Rxb2 $19) 32... Rd1+ 33. Kf2 Rxc6 $17 {Stockfish10})) (22. exd6 Bxc3 23. bxc3 Nd5 24. Qd4 Rxd6 25. Rgd2 Rdc6 26. Qe5 Qc7 27. Bd4 Qxe5 28. Bxe5 h6 $19 {Stockfish10}) 22... Nd5 23. Rxd5 Qxd5 24. Nxd6+ Rxd6 25. Qxd6 Qxd6 26. exd6 Bxb2 27. d7 Rd8 28. c4 Bf6 29. a5 Rxd7 30. Ra2 (30. axb6 axb6 31. Bxb6 Rd1+ 32. Kf2 Rc1 33. c5 Bd4+ 34. Ke2 Bxc5 35. Bxc5 Rxc5 36. Kd3 e5 37. fxe5 Rxe5 $17 {though with all the pawns on one side most likely drawn}) 30... Bd4 31. Kf2 e5 32. fxe5 Ke6 33. axb6 axb6 34. Bxd4 Rxd4 35. Rb2 Kxe5 36. Rxb6 Rd2+ 37. Kg1 Rc2 38. Rb7 h5 39. Re7+ {Stockfish10 =}) 22. Qb3 (22. Qb5 Nc6 23. Rgd2 Bb4 24. Rd3 Rc7 $11 {Stockfish10}) 22... Nc6 23. Rgd2 (23. Nb5 Na5 24. Qd3 Nc4 25. c3 a6 26. Nd4 d6 27. exd6 Rxd6 $15 {Stockfish9}) (23. Qa2 d6 $11) 23... Nb4 (23... Na5 24. Qb5 d5 $17 {Stockfish10} 25. exd6 (25. Bd4 Bc5 26. Rf2 a6 27. Qe2 Nc4 28. Bxc5 Rxc5 29. b4 Rcc8 30. Qf3 Nb2 31. Ra1 Qc6 32. Ne2 Qxc2 $17) 25... Nc4 26. Rd3 Nxe3 27. Rxe3 Bxd6 28. Qb3 Bc5 29. Qxe6+ Kg7 $19 {Stockfish10 }) 24. Nb5 (24. Bf2 Nc6 25. Nb5 Na5 26. Qa2 a6 27. Nd4 Nc6 28. Nf3 Kg8 29. Ng5 Kg7 30. Qc4 $11) 24... Nd5 (24... a6 25. Na3 Kg7 26. Bf2 Nd5 27. c4 Nb4 28. h3 $14) 25. Bf2 $16 (25. Rxd5 {considered for a while & pm analysis, still looks unclear} exd5 26. Rxd5 Kg7 (26... Ke8 27. Rd6 Qe4 28. Rd4 Qf3 29. Rd3 Qe2 30. Nc3 $18 {Stockfish10}) 27. c3 (27. Nd6 Bxd6 28. Rxd6 (28. exd6 Rxc2 29. Bd4+ Kh6 30. g4 fxg4 31. h3 Re8 32. Be5 Rc1+ 33. Kf2 Qa6 34. Rb5 Qb7 $19 { Stockfish10, & pm analysis}) 28... Qe4 29. Rd2 Rc4 $17) 27... a6 28. Nd4 Be7 29. a5 b5 30. Nf3 h6 31. Kf2 $16 {Stockfish10 just regaqrding it as a positional sacrifice}) (25. c4 {considered} Nxe3 (25... Rxc4 $1 $17 { Stockfish10}) 26. Qxe3 Rxc4 $17 (26... Bc5 $2 27. Qxc5 Rxc5 28. Nd6+ Ke7 29. Nxb7 $18)) 25... a6 26. c4 Nb4 {after this the Bl position goes downhill} ( 26... Nxf4 {expected} 27. gxf4 axb5 28. Qxb5 (28. axb5) 28... Qe4 29. Qxb6 Be7 30. Qd4 Rxc4 31. Qxe4 fxe4 (31... Rxe4 32. a5 Ke8 33. a6 Ra8 34. a7 $18) 32. Bb6 e3 33. Bxe3 Rxa4 34. Rxd7 Rxd7 35. Rxd7 Rc4 36. Kf2 $14 {Stockfish10, though the extra pawn looks healthy, if rather far back still.}) (26... axb5 27. cxd5 bxa4 28. Qxa4 (28. Qb5 exd5 29. Rxd5 Qc6 30. Bxb6 Qxb5 31. Rxb5 Re8 32. Rxd7+ Re7 33. Rdd5 Rb7 34. Bf2 $14) 28... b5 29. Qb3 Be7 30. Qf3 (30. d6 Bf8 $18 {entombs the B, which Engines have difficulty with appreciating that it is a longterm win.}) 30... Qa8 31. h3 $14 {Stockfish10}) 27. Nd6+ Bxd6 28. Rxd6 a5 (28... Nc6 29. Qxb6 Qxb6 30. Bxb6 Re8 31. Rxd7+ {is not much good for Bl either}) 29. Bxb6 Rc7 30. Bxa5 $1 {maximising gain} Qa7+ 31. Bb6 Qb7 32. Bxc7 Qxc7 33. Qxb4 Ke8 34. Qb5 (34. c5) 34... Qa7+ 35. c5 {Wh has too many threats & material} (35. c5 Ke7 (35... g5 36. Rxe6+) 36. R1d4 (36. Rxd7+ Rxd7 37. Qxd7+ Qxd7 38. Rxd7+ Kxd7 39. b4 {and Wh has 3 passed pawns}) 36... g5 37. Qb4 Ke8 38. c6 {Stockfish10}) 1-0 [Event "Dyfed League: Steynton B-Aberystwyth"] [Site "?"] [Date "2019.01.14"] [Round "?"] [White "Coles, Jon"] [Black "Watkin-Jones, A."] [Result "0-1"] [ECO "B06"] [WhiteElo "1593"] [BlackElo "1928"] [Annotator "kemen"] [PlyCount "50"] [EventDate "2019.01.15"] {[%evp 0,10,19,31,80,74,88,100,94,86,81,65,82]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 {a system favoured by Tiger Hillarp Persson, a doubledged one guaranteed to lead to unbalanced positions} 5. h3 (5. Qd2) (5. a4 {main lines}) 5... Nd7 (5... b5 6. a3 Bb7) 6. f4 b5 7. a3 Bb7 8. Be2 $146 {its not clear that the B needs to be here- & presumably Wh was planning to put it on f3. But the plan takes time & gives Bl chances to undermine the centre. Though, strangely enough it appears to Stockfish10's first choice in this position, & Komodo12's second by a small margin.} (8. Nf3 {main, most flexible}) (8. Bd3 c5 9. dxc5 Nxc5 10. Qf3 f5 {Repina-Lofgren, EU ch U14 girl, Herceg Novi 2005,0-1}) 8... Ngf6 {Komodo12} (8... c5 {Stockfish10}) (8... Rc8 {Rudy- to take back with the N after c5 , is given by Tiger in related positions}) 9. e5 { Stockfish10} (9. Bf3 {Komodo12}) 9... Nd5 {Stockfish10} (9... Ne4 10. Nxe4 Bxe4 11. Nf3 (11. Bf3 f5) 11... O-O $11 {Komodo12}) 10. Nxd5 Bxd5 11. Bf3 (11. Nf3 { both Engines}) 11... Nb6 12. b3 e6 $15 13. c4 $2 {a misconception- Wh wants to regain control over the wh squares left weakened by the centre pawns on bl squares, but it loses an important pawn} (13. Qd2 {both Engines- deals with the treat of Qh4 ch} O-O 14. Bxd5 Nxd5 15. Nf3 $11) 13... bxc4 14. bxc4 Nxc4 $19 15. Bxd5 exd5 16. Qa4+ Qd7 17. Qxd7+ Kxd7 18. Bf2 Rhb8 {in addition to the pawn Bl is far superior in development} (18... f6 {both Engines}) 19. Nf3 f6 ( 19... Nxa3 {both Engines}) 20. O-O Rb3 (20... Rb2 {Komodo12}) (20... fxe5 21. dxe5 c5 {Stockfish10}) 21. exf6 Bxf6 22. Ng5 {trying to get some play, but it just sends a N offside} h6 23. Nh7 $2 (23. Nf3 Nxa3) 23... Bg7 24. Bh4 { to rescue the N, but} Bxd4+ 25. Kh1 Bxa1 0-1 [Event "Dyfed League: Steynton B-Aberystwyth"] [Site "?"] [Date "2019.01.14"] [Round "?"] [White "Van Kemenade, J."] [Black "Miller, John S"] [Result "1-0"] [ECO "C00"] [WhiteElo "1761"] [BlackElo "1565"] [Annotator "kemen"] [PlyCount "105"] [EventDate "2019.01.15"] {[%evp 0,10,19,31,47,4,6,-2,-5,-26,-28,-34,-5]} 1. e4 e6 2. d3 (2. Qe2 c5 3. g3 Nc6 4. Nf3 g6 5. Bg2 Bg7 6. d3 Nge7 7. O-O O-O 8. c3 Qc7 9. Nbd2 a6 10. a4 d5 11. Nh4 d4 12. c4 {same players, Dyfed League 2015,0-1}) 2... d5 (2... c5 3. Qe2 (3. f4 Nc6 4. Nf3 d6 5. Be2 {same players, Dyfed League 2018,1-0}) (3. g3 Nc6 4. Nf3 g6 5. Bg2 Bg7 6. O-O d6 7. Re1 Nge7 8. c3 e5 9. Nbd2 O-O 10. Nf1 { same players, Dyfed League 2018,1-0}) 3... Nc6 4. Nf3 Nge7 5. g3 d5 6. Bg2 d4 7. O-O e5 8. Ne1 {same players, Dyfed League 2013,1-0}) 3. Qe2 d4 (3... Ne7 4. Nf3 c5 5. g3 Nbc6 6. Bg2 d4 7. O-O Rb8 {same players, Dyfed League 2016,1/2-1/2 }) 4. g3 (4. Nf3 c5 5. g3 Nc6 6. Bg2 e5 7. h3 Nge7 8. Nbd2 Qc7 9. a4 f6 10. Nc4 Be6 11. Nfd2 Ng6 12. O-O {same players, N-S Dyfed 2014,1/2-1/2}) 4... e5 5. Nf3 (5. Bg2 g5 (5... Nf6 6. f4 Nc6 7. Nf3 Bd6 8. O-O {Chedresse-Martinoli, Najdorf mem, Buenos Aires 2002,1-0}) 6. Nf3 f6 7. Nxe5 fxe5 8. Qh5+ Kd7 9. Bxg5 Be7 10. Qf7 c6 11. Nd2 {Libersan-Guimond,LEO-A, Gatineau 2012,1-0}) 5... Bd6 6. Bg2 Bg4 7. Nbd2 Nc6 8. h3 Be6 9. O-O (9. c3 $11 {Stockfish10}) 9... f6 10. Ne1 Nge7 11. f4 Qd7 12. f5 (12. Nc4 b5 13. Nxd6+ cxd6 (13... Qxd6 14. Bd2 $11) 14. f5 Bf7 15. Qg4 Kf8 (15... O-O 16. Bh6 Bg6 17. Bd2 Be8 18. Qh4 Nd8 19. g4 Nf7 20. Qg3 $14) 16. Qh4 $14 {Stockfish10}) 12... Bf7 13. a3 a6 14. Nef3 (14. Nc4 $5) 14... O-O-O 15. b4 b5 $5 {risky , moving pawns in front of a castled K ( though Wh has done the same, there are more Wh backup pieces near the K.} (15... Kb8 { Stockfish10}) 16. Nb3 Kb7 17. Bd2 Nc8 (17... Bxb3 18. cxb3 g5 19. Rfc1 $16 { Stockfish10}) (17... Rdg8 18. Rfb1 g6 19. a4 $16 {Stockfish10- considers the Wh attack more promising than Bl's on the opposite wing}) 18. Rfb1 (18. Na5+ { Rudy- to prevent N coming to b6 seems premature} Nxa5 19. bxa5 Qe7 20. a4 (20. Bc1 Na7 21. Qe1 c5 {and Bl has much more space to play with & can tuck the K to safety on a8}) 20... b4 $19) (18. Rfc1 $1 {considered by Wh} Nb6 (18... Kb8 19. Nc5 (19. Rab1) 19... Bxc5 20. bxc5 a5 21. Rab1 N8a7 22. Rd1 Qe7 23. Qf2 Rd7 24. c4 dxc3 25. Bxc3 Rhd8 26. Qe3 $11 (26. d4 exd4 27. Nxd4 Nxd4 28. Rxd4 Rxd4 29. Bxd4 Ba2 30. Rc1 Nc6 31. Be3 Bb3 $11 {Stockfish10})) 19. c4 dxc3 20. Rxc3 Bxb3 (20... Na4 21. Rxc6 Bxb3 22. Rac1 Bf7 23. d4 Qxc6 {other moves lose-either the pawn comes to d5 or the diagnal opens for the B} 24. Rxc6 Kxc6 25. Bg5 {Stockfish10} Rde8 (25... fxg5 26. dxe5 Be7 27. e6 $18) 26. Bh4 h5 27. g4 $16) 21. Rxb3 Bxb4 22. axb4 Nd4 23. Qd1 Nxb3 24. Qxb3 Qxd3 25. Qa2 Na4 26. Rc1 Rd7 $11 {Stockfish10}) 18... Nb6 19. Bf1 (19. Kh2 $11) (19. a4 Bxb3 (19... Nxa4 20. Nfxd4 exd4 21. e5 Bxb3 (21... Bxe5 22. Na5+ Kc8 23. Nxc6 $16) 22. cxb3 Nc3 23. Bxc3 dxc3 24. exd6 Rhe8 25. Qf2 (25. Qa2 Ra8 26. d4 cxd6 27. Rc1 Re3 ( 27... d5 28. Rxc3 $11) 28. Qf2 Rae8 29. Qa2 d5 30. Qxa6+ Kc7 31. Qxb5 Qd6 $17 { Stockfish10}) 25... Qxd6 26. Rc1 Qxb4 27. Rxa6 Kxa6 28. Bxc6 Qa3 29. Rc2 Re1+ 30. Qxe1 Qc5+ 31. Kh2 Qxc6 32. Rxc3 Qd7 33. Qe3 $11 {Stockfish10})) 19... Na4 ( 19... Rdg8 $17 20. Kh1 g6 21. Nh4 Na4 22. Rc1 Ka8 $17 {Stockfish10}) 20. Qe1 ( 20. Kh1) 20... Na7 (20... g6 $17) 21. c4 (21. Na5+ Ka8 22. c4 dxc3 23. Bxc3 c5 24. Bd2 g6 $15 {Stockfish10}) 21... dxc3 22. Bxc3 (22. Na5+) 22... Nxc3 (22... Nc6 23. Ra2 Rhg8 24. Kh2 Bxb3 25. Rxb3 g6 $17 {Stockfish10}) 23. Qxc3 Bxb3 24. Qxb3 $11 c5 (24... g6 25. a4 Rhg8 26. Nh4 $11 {Stockfish10}) 25. Kg2 (25. Kh1 $16 {Stockfish10} cxb4 26. axb4 Nc6 27. d4) (25. a4 {considered, comes close to winning} cxb4 26. d4 (26. axb5 Bc5+ 27. Kg2 axb5 28. Qa2 Kb8 29. d4 exd4 30. Bd3 Rhe8 31. Rc1 Bb6 32. e5 Qb7 (32... fxe5 33. Be4 $18 d3 34. Qa6 Be3 35. Re1 Bc5 36. Ra5 d2 37. Rd1 Re7 38. Rxd2 $18) 33. e6 g6 34. Re1 gxf5 35. Bxf5 Qe7 36. Qd2 Qc5 37. Bxh7 Qd6 38. Bf5 d3 39. Rad1 $11 {Stockfish10}) 26... a5 (26... exd4 27. axb5 $18 axb5 (27... Nxb5 28. Qd5+ Kb6 (28... Qc6 29. Qxc6+ Kxc6 30. Rxa6+ Kb7 31. Bxb5 $18) 29. e5 Bxe5 30. Qa2 $18) 28. Qd5+ Kb8 29. Ra6 Qc7 30. Rc1 $18) 27. axb5 Bc7 28. dxe5 fxe5 29. Kh1 $16 {Stockfish10}) 25... Nc6 26. bxc5 (26. a4 {considered} Nxb4 27. d4 (27. axb5 axb5 28. d4 Ra8 (28... c4 $2 29. Bxc4 bxc4 30. Qxc4 $18 Qc6 31. Rxb4+ Bxb4 32. Ra7+ Kxa7 33. Qxc6 $18) 29. dxc5 Bxc5 30. Rc1 Rxa1 31. Rxa1 Ra8 32. Rxa8 Kxa8 33. Qa3+ Kb8 34. Qa5 Kb7 35. Bxb5 Qd1 36. Qa4 $11) 27... c4 28. Qc3 exd4 29. Qxd4 Qc7 30. axb5 a5 31. b6 Qxb6 32. Bxc4 Qxd4 33. Nxd4 Be5 34. Rxa5 Rxd4 35. Rxb4+ Kc7 $11 {Stockfish10}) 26... Bxc5 27. a4 Nd4 (27... b4 28. d4 Bxd4 (28... Nxd4 29. Bxa6+ Ka8 30. Qc4 Qc6 31. Ra2 Qxe4 32. Qxc5 Qxf3+ 33. Kh2 Qd5 34. Qxd5+ Rxd5 35. Rxb4 Rb8 36. Rxb8+ Kxb8 37. g4 $11) 29. Ra2 Ka7 30. Rc2 Rc8 31. Qd5 Qxd5 32. exd5 e4 33. dxc6 exf3+ 34. Kxf3 Bc3 35. Bd3 Rhe8 36. Be4 Rc7 $15 {Stockfish10}) 28. Qd5+ { trying to avoid a lineup of Q & B aimed at f2 & g1} (28. Qc3 $1 Bb6 29. axb5 axb5 30. Nxd4 Rc8 31. Qb2 Qxd4 32. Qxd4 Rc2+ 33. Kh1 Bxd4 34. Rxb5+ Kc6 35. Rab1 $11 {Stockfish10}) 28... Qxd5 29. exd5 b4 $19 (29... Nc2 $19 {Stockfish10} 30. axb5 (30. Ra2 Ne3+ 31. Kg1 Nxd5+ 32. Kh2 Nc3) (30. d4 Bxd4 31. Nxd4 exd4 32. axb5 (32. Ra2 Ne3+ 33. Kf2 Nxf1 34. Kxf1 Rxd5 35. g4 h5 36. axb5 axb5 $19)) 30... Nxa1 31. bxa6+ Ka7 (31... Kxa6 32. d4+ $16) 32. Rxa1 Rxd5 $19 { Stockfish10}) (29... Rxd5 {Rudy} 30. axb5 axb5 31. Nd2 Ra8 32. Rxa8 Kxa8 33. Ne4 Bf8 34. Kf2 Rd7 $19) 30. Nxd4 exd4 31. Be2 (31. Re1 {Stockfish10} Kb6 ( 31... Rxd5 32. Be2 Rxf5 33. Bd1 Re5 34. Rxe5 fxe5 35. Rc1 Kc6 36. Bb3 a5 $19) 32. Rac1 Rxd5 33. Re6+ Rd6 34. Be2 Rxe6 35. fxe6 Re8 $19) 31... Rd6 {the R does not belong here & Bl has to backtrack a little later} (31... Bd6 $19) ( 31... Rhe8 $19) 32. Bf3 a5 (32... Rc8 33. Re1 Bb6 34. Re7+ Rc7 35. Rae1 Kc8 ( 35... Bc5 36. Rxc7+ Kxc7 37. Rc1 Kb6 38. g4 $11) 36. Re8+ Rd8 37. R8e6 Rc2+ 38. R1e2 Rxe2+ 39. Rxe2 Ba5 $15 {Stockfish10}) 33. Re1 $11 Rd7 34. Re6 (34. Rac1 { probably transposes}) 34... Bd6 35. Rc1 Rc8 36. Rc6 (36. Rxc8 Kxc8 37. Bd1 $11 {Stockfish10}) 36... b3 $19 37. Re1 b2 38. Kf2 (38. Rb1 {forces the B to a worse position than the game continuation, however} Ba3 39. Kf1 Kb8 40. Ke2 Re7+ 41. Kd2 Rxc6 42. dxc6 Re5 43. Kc2 (43. Be4 Rc5) 43... Rxf5 44. Kb3 Rxf3 45. Kxa3 Rxd3+ 46. Kxb2 Rxg3 $19) 38... Rb8 39. Rb1 Ka7 40. Ke2 Bxg3 $15 (40... Rb3 $1 41. Kd2 Bb4+ 42. Kc2 Rc3+ 43. Kxb2 Bc5 {threatens mate} 44. Rxc5 Rxc5 45. g4 Rb7+ $19 {Stockfish10}) 41. Kd2 (41. Rc2 Rb4 42. Rbxb2 (42. Rcxb2 Rxa4 $15) 42... Rxa4 43. Rc6 Rb4 44. Rxb4 axb4 45. Kd1 Rc7 46. Kc2 $11 {Stockfish10} ) 41... Bf4+ 42. Kc2 Bc1 $19 43. Rc4 (43. d6 Rbd8 $19) 43... Re7 (43... Kb6 { Ks must be used as an attacking force in endgames or late middlegames} 44. Rxd4 Rc7+ 45. Kd1 (45. Rc4 Rxc4+ 46. dxc4 Kc5 $19) 45... Kc5 46. Rc4+ Kd6 47. Rc6+ Rxc6 48. dxc6 Rb4 49. Kc2 Rxa4 50. Kb3 Rh4 51. Bg2 Rf4 52. Be4 Rh4 53. Bg2 Rh5 $19 {Stockfish10}) 44. Be4 Rb4 (44... Ree8 45. Rc7+ Kb6 46. Rxg7 Rec8+ 47. Kd1 Rc7 48. Rxc7 Kxc7 49. Rxc1+ (49. Kc2 Rb4 $19) 49... bxc1=Q+ 50. Kxc1 Rb4 51. Kc2 Rxa4 $19 {Stockfish10}) 45. d6 {a very tricky position} (45. Rxb4 axb4 46. Kb3 Kb6 47. Kxb4 Kc7 48. Kb3 Re8 49. a5 Rb8+ 50. Ka4 Kd6 $19 {Stockfish10} 51. a6 Rb6 52. Ka5 Kc5 53. a7 Bd2+ 54. Ka4 Ra6+ 55. Kb3 Bc1 56. Rxb2 Bxb2 57. Kxb2 Rxa7 {it takes the Engine a little while to find the winning sequence though- Bl needs to come in via e5, while the R prevents the d pawn from moving. In the meantime Wh's B is merely a big pawn.}) 45... Rxe4 {the wrong R move} ( 45... Rxc4+ 46. dxc4 Rxe4 47. d7 {it looks as if the R can't get back, however the Engine sees further} d3+ 48. Kxd3 Re3+ 49. Kc2 (49. Kd4 Re1 50. Kd5 Rd1+ 51. Ke6 Kb7 52. Ke7 Kc7 $19) 49... Re2+ 50. Kc3 Rd2 51. Rxb2 Rxd7 $19 { Stockfish10}) (45... Re8 {may be simplest} 46. Rc6 Rb6 47. Rc7+ Kb8 48. Rxg7 Rc8+ 49. Kd1 Bh6 $19 50. Rg1 Rc1+ 51. Ke2 Kc8 $19 {Stockfish10}) 46. Rc7+ { also, it appears, the wrong R move} (46. Rxb4 {considered by Wh} Re8 47. Rxd4 $16) 46... Kb8 $2 {losing a valuable tempo} (46... Rb7 $1 47. Rxb7+ (47. dxe4 Rxc7+ 48. dxc7 Kb7 49. Kd3 (49. Kb3 Kxc7 50. Kc4 Kc6 51. Kxd4 Kd6 52. e5+ fxe5+ 53. Ke4 h6 54. h4 h5 $19 {Bl keeps the opposition}) (49. Rxb2+ Bxb2 50. Kxb2 Kxc7 51. Kb3 Kd6 52. Kc4 Ke5 $19) 49... Kxc7 50. Kxd4 Kd6 51. Kc4 Ke5 52. Kb5 Kxe4 53. Kxa5 Kd3 54. Kb6 Kc2 55. Rxb2+ Bxb2 56. a5 Kd3 57. Kc7 Bd4 $19) 47... Kxb7 48. dxe4 Kc6 49. Kd3 Kxd6 50. Kxd4 g5 (50... h6 51. h4 h5 52. Kd3 Ke5 $19) 51. fxg6 hxg6 52. h4 Ke6 {Wh always loses the battle for the opposition}) 47. dxe4 $18 Rb7 (47... Rb6 48. Kd1 (48. Kd3 Rb3+ 49. Kxd4 Bf4 50. Kc4 Rb6 51. Rxg7 Bxd6 52. Rxh7 $18) 48... Bf4 (48... Rxd6 $2 49. Rcxc1 $18) 49. Rc2 Bxd6 (49... Bc1 50. d7 $18) 50. Rbxb2 Bb4 51. Ke2 $18 {Stockfish10}) 48. Rc4 (48. Rc6 $18 { Stockfish10} Bf4 (48... Ka7 49. Kd3 g6 50. Kxd4 Bf4 51. Kd5 Be5 52. Ke6 Rb4 53. fxg6 hxg6 54. d7 Rxe4 55. Rc8 $18 {Stockfish10}) 49. Rxb2 d3+ 50. Kb1 d2 51. Rxb7+ Kxb7 52. Rc7+ Kb6 53. Kc2 $18 {Stockfish10}) 48... Rb4 (48... Bf4 49. Rxd4 Kc8 50. Rc4+ Kd7 51. Rxb2 $18) (48... Rd7 49. Kd3 $1 (49. Rxd4 Kc8 50. Rd5 Ra7 51. Rxb2 Bxb2 52. Kxb2 Kd7 53. Kc3 Ra6 54. h4 $18) 49... Ka7 50. Rc6 $18 { Stockfish10}) 49. Rxb4+ {simplest} axb4 50. a5 $18 Kc8 (50... Bf4 51. d7 Kc7 52. a6 Be3 53. Kd3 $18) 51. a6 (51. Rxc1 bxc1=Q+ 52. Kxc1 $18 {preferred by Stockfish10}) 51... Be3 52. Kd3 Bf4 53. d7+ 1-0 [Event "Dyfed League: Steynton B-Aberystwyth"] [Site "?"] [Date "2019.01.14"] [Round "?"] [White "Hammett, Scott"] [Black "Cook, James"] [Result "1-0"] [ECO "A01"] [WhiteElo "1533"] [BlackElo "1496"] [Annotator "kemen"] [PlyCount "65"] [EventDate "2019.01.15"] {[%evp 0,8,41,-36,-16,-25,-1,-1,-15,-7,5]} 1. b3 e5 2. Bb2 d5 {an automatic move, which would be fine if the colours were reversed or the Wh pawn had gone to b4.There are, though , 34 games in the database with this move, with a 30 % success rate for Bl!} (2... Nc6) (2... d6) (2... f6) 3. Bxe5 Nc6 (3... d4 { has been tried as well}) 4. Bb2 Nf6 (4... Bg4 {could be tried}) 5. e3 Ne4 $146 {hoping to create some chaos to compensate for the pawn, but the Wh position has no weaknesses} (5... Bd6 {main, Bl just carries on as if not a pawn down, manages to score 35%}) 6. d3 Nxf2 $6 {however Bl has not enough pieces on the scene to make this work} (6... Bb4+ 7. c3 {fails to work as well}) 7. Kxf2 $18 Qh4+ 8. g3 Qg5 9. Nf3 (9. Nh3) 9... Bg4 (9... Qh6 $5) 10. Nxg5 {Wh doesn't mind simplification} Bxd1 11. c3 (11. Nc3 Bxc2 12. Nb5 Rc8 13. Nf3 Nb4 14. Ne1 {and the B is trapped, Stockfish10}) 11... Ne5 12. Be2 (12. Nd2) 12... Bc2 13. c4 Bxd3 (13... Nxd3+ 14. Bxd3 Bxd3 15. cxd5 $18) 14. Bxe5 Bxe2 15. Kxe2 f6 16. Bxc7 (16. Ne6 Kf7 17. Nxf8 Rhxf8 18. Bd4 {and Wh is 2 pieces up-Stockfish10}) 16... fxg5 17. cxd5 Rc8 18. d6 (18. Be5) 18... g6 19. Nd2 Bg7 20. Rad1 Kd7 21. Rhf1 Rhf8 22. Rxf8 (22. Ne4) 22... Bxf8 23. Ne4 Rxc7 24. dxc7+ Kxc7 25. Nf6 h6 26. Kf3 (26. e4 {runs the pawn through as the K is cut off}) 26... h5 27. e4 g4+ 28. Kf4 Bh6+ 29. Ke5 Bg5 30. Ke6 h4 31. Nxg4 (31. e5 {the g pawn doesn't matter}) 31... hxg3 32. hxg3 Bd8 33. Rxd8 {simplest- the Wh K shepherds the e pawn through} 1-0 [Event "Dyfed League:Aberystwyth-CardiganB"] [Site "?"] [Date "2019.01.22"] [Round "?"] [White "Brewer, Ben"] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "A85"] [PlyCount "88"] [SourceVersionDate "2019.01.23"] 1. Nf3 (1. d4 d6 2. Nf3 f5 3. Bf4 Nf6 4. e3 g6 5. Nbd2 Bg7 6. c3 O-O 7. Bc4+ e6 8. Ng5 Qe7 {Miller-Van Kemenade,Dyfed Open 2017,0-1}) 1... f5 2. d4 Nf6 3. c4 g6 4. Nc3 Bg7 5. Bf4 {a move virtually ignored by the theory books on the grounds that the B is badly placed here against the Dutch. However the popularity of the London System against 1...Nf6 means that is quite often played, & recently also by some of the top GMs} d6 6. h3 (6. h4 {considered by Wh & versions of it are given some coverage in the opening books}) (6. e3 Nc6 7. Be2 O-O 8. O-O Ne4 9. h3 e5 {Aronian-Carlsen, Sinquefield Cup, St Louis 2013,1/2-1/2}) 6... O-O 7. e3 Qe8 {second most frequent} (7... c6 {main}) 8. Be2 (8. Bd3 {looks riskier eg} Nc6 9. d5 e5) 8... Nc6 (8... c6 9. O-O Nh5 10. Bh2 e5 {jurgis30-hearthstones9, chesscube 2013,0-1}) 9. d5 Nd8 (9... e5 { considered, Wh would probably have played} 10. dxe6 (10. dxc6 exf4 11. cxb7 ( 11. exf4 Ne4 12. Rc1 bxc6 13. O-O Rb8 $15) 11... Bxb7 12. exf4 Bxf3 13. gxf3 Nh5 {would be awful for Wh}) 10... Bxe6 11. O-O {when Stockfish9 gives} Ne4 ( 11... h6 $11 {Komodo12}) 12. Qc2 Nxc3 13. bxc3 b6 14. Nd4 Bd7 15. Bf3 $15) 10. O-O e5 11. dxe6 Nxe6 12. Bh2 {the B has found a refuge, but never moves again until it is removed from the board} g5 $5 {hoping to storm the K side with h5&g4} (12... Ne4 13. Nxe4 fxe4 14. Nd2 Nc5 15. Rb1 a5 $15 {Komodo12}) 13. Nd5 (13. c5 g4 (13... dxc5 14. Bc4 Kh8 15. Qd3 g4 16. hxg4 Nxg4 17. Bg3 a6 $11) 14. hxg4 fxg4 15. Nd4 Nxc5 16. Rc1 Qe7 (16... a5 17. Ncb5 Qe7 18. Nxc7 Qxc7 19. Nb5 Qf7 20. Bxd6 Nce4 21. Bxf8 Qxf8 22. Rc7 Kh8 $11) 17. b4 Nce4 18. Nxe4 Nxe4 19. Bxg4 Kh8 20. Bf3 c6 21. b5 c5 22. Ne2 $14 {Komodo12}) (13. Rc1 b6 $16 { Stockfish10}) 13... Ne4 (13... Qf7 14. Rb1 a5 15. a3 Bd7 16. b4 axb4 17. axb4 Ne4 18. Nd2 Nc3 19. Nxc3 Bxc3 20. Bf3 Bc6 $11 {Stockfish10}) 14. Rb1 (14. Nd2 { expected} N4c5 15. Qc2 Bd7 $11) 14... c6 15. Nb4 Qe7 {this one & Bl's next are too defensive} (15... g4 $1 {Stockfish10} 16. hxg4 fxg4 17. Nd2 Nxd2 18. Qxd2 Ng5 $15 (18... Nc5) 19. Nd3 (19. Qxd6 Ne4 20. Qd1 (20. Qc7 a5 21. Nc2 Nd2 $19) 20... Bf5 21. Nd3 g3 22. fxg3 (22. Bxg3 Nxg3 23. fxg3 Qxe3+ 24. Kh2 Qh6+ 25. Kg1 Rad8 $19) 22... Nc5 $19) 19... Bf5 20. Rbe1 Rf6 21. f3 gxf3 22. Bxf3 Rh6 $15 {Stockfish10}) (15... N6c5 16. Nd2 Nxd2 17. Qxd2 g4 18. Bf4 Rf6 19. Qc2 gxh3 20. gxh3 Rg6+ 21. Kh2 Qe4 $11 {Stockfish10}) 16. a3 {Wh's move is also defensive} (16. Nd2 $11) 16... Rd8 {Stockfish10 3rd choice though} (16... a5 17. Nd3 a4 18. Nd2 N4c5 (18... Rd8 $11 {Stockfish10 first choice})) (16... f4 { pm analysis} 17. Qc2 (17. Qc1 h5 $17) 17... N6c5 (17... Nf6 {Stockfish10} 18. exf4 g4 19. hxg4 Nxg4 20. Bg3 Nxf4 21. Rbe1 Ne5 22. Nxe5 dxe5 $11) 18. exf4 gxf4 19. Nd3 Bf5 $11 {Stockfish10}) (16... g4 17. hxg4 fxg4 18. Nd2 N6c5 19. Nxe4 Nxe4 20. Bxg4 Nxf2 21. Rxf2 Rxf2 22. Kxf2 Qh4+ 23. Bg3 Qxg4 24. Qxg4 Bxg4 25. Bxd6 Bf5 26. Rd1 Bxb2 27. Nd3 Bg7 28. e4 Bxe4 29. Nc5 Bc2 30. Rd2 Bg6 31. Nxb7 Bf7 32. c5 Bd5 $15 {Stockfish10- the Bl pieces are slightly more active. also because of the 2Bs}) 17. Nd4 (17. Nd2 N6c5 $15) 17... Qf8 (17... Nxd4 18. exd4 f4 19. f3 Ng3 (19... Nf6 $15 {and the B will emerge eventually via g1}) 20. Bxg3 fxg3 {considered by Bl} 21. Nc2 Bf5 22. Rc1 Bxc2 23. Rxc2 Qe3+ 24. Kh1 Qxd4 25. Bd3 Re8 26. Be4 Qxd1 27. Rxd1 Be5 $17 {Stockfish10; but with no open files for the Rs & opposite colour Bs looks difficult for Bl to force a way in. }) (17... Qf6) 18. Nbc2 Kh8 19. Nxe6 Bxe6 20. Nd4 Bc8 (20... Bg8 {original intention, but there would be worries about the f pawn} 21. Qc2 c5 22. Nxf5 Qxf5 23. Bd3 Bxc4 24. Bxc4 d5 25. Be2 c4 $14 {Stockfish10}) (20... Bd7 21. Bd3 Re8 22. Qc2 d5 23. cxd5 cxd5 24. Bxe4 dxe4 25. Qc7 Rad8 26. Rfd1 (26. Qxb7 Bxd4 27. exd4 f4 28. Qxa7 Qf6 29. b4 Bb5 30. Rfe1 Rxd4 31. Rbd1 Rxd1 32. Rxd1 Qc3 33. Qc5 Qxc5 34. bxc5 e3 35. fxe3 Rxe3 $11 {Stockfish10}) 26... f4 27. Qxb7 Bc8 28. Qxa7 f3 29. g4 h5 30. Qa5 hxg4 31. hxg4 Qf6 32. Nf5 $18 {Stockfish10}) 21. Qc2 d5 22. Rbd1 f4 (22... dxc4 23. Bxc4 a6 (23... c5 24. Nb5 $18 (24. Ne6 Bxe6 25. Bxe6 Qf6 26. Bd5 Qxb2 27. Bxe4 fxe4 28. Qxc5 $16)) 24. Ne2 Rxd1 25. Rxd1 Qe7 26. Bd3 $16 {Stockfish10}) 23. cxd5 cxd5 24. exf4 (24. Qc7 Rd6 25. Bf3 Bd7 26. Qxb7 Ba4 27. b3 Nc5 28. Qb4 Rb6 29. Qa5 Ra6 30. Qd2 Nxb3 31. Nxb3 Bxb3 32. Rb1 Rxa3 33. exf4 gxf4 34. Qxf4 Qxf4 35. Bxf4 Bc4 36. Rfd1 Rb3 37. Rxb3 Bxb3 38. Rd2 a5 39. Bxd5 Bxd5 40. Rxd5 a4 $11 {Stockfish10}) 24... gxf4 25. Qc7 Nd6 {laying a trap, but} (25... Rd6 26. Bf3 Ng5 27. Kh1 Bd7 28. Qxb7 Nxf3 29. Nxf3 Bc6 30. Qc7 d4 $14 {is a better sequence}) 26. Qc2 (26. Bxf4 $18 Rd7 {and Bl had (mis)calculated} 27. Bxd6 (27. Qc1 {Stockfish10 just leaves Bl in difficulties}) 27... Rxc7 28. Bxf8 Bxf8 {as winning a piece}) (26. Qc1 { considered better in pm analysis} Bxh3 {Stockfish10} (26... Bh6 27. Bf3 Ne4 28. Bxe4 dxe4 29. Ne2 Bf5 30. Bxf4 Bg7 31. Rxd8 Rxd8 32. Rd1 Rxd1+ 33. Qxd1 Bxb2 34. Qd5 $18 {Stockfish10}) 27. Qxf4 (27. gxh3 Bxd4 28. Bg4 Qg7 29. Qxf4 Ne4 30. Qc7 Bxb2 31. Rb1 Bd4 32. Rxb7 Qxc7 33. Bxc7 Rf8 34. Rd1 Bxf2+ 35. Kg2 Bh4 36. Be5+ Bf6 37. Rxd5 Bxe5 38. Rxe5 Nd6 39. Rd7 Rfd8 40. Rc7 Ne8 $14 {Stockfish10}) ) 26... Nf5 (26... Bxh3 $1 {Stockfish10} 27. Qd2 (27. gxh3 Bxd4) 27... Be5 28. gxh3 Ne4 29. Qd3 Nc5 30. Qf5 Qg7+ 31. Bg4 Bxd4 32. Rxd4 Qxd4 33. Bxf4 Nd7 34. Re1 Rf8 35. Be3 Qxe3 36. Rxe3 Rxf5 37. Bxf5 Nb6 38. Re7 Rg8+ 39. Kf1 Rg7 40. Re8+ Rg8 41. Rxg8+ Kxg8 42. Ke2 $16) (26... Ne4 27. Qc7 Rd6 {as in an earlier position}) 27. Nxf5 (27. Nf3 $1 Ne7 28. Bd3 Bf5 29. Bxf5 Qxf5 30. Qxf5 Nxf5 31. Bxf4 Bxb2 32. Rb1 Bxa3 33. Rxb7 Bd6 34. Bg5 Rf8 35. Rd1 h6 36. Bc1 Rab8 37. Rxb8 Rxb8 38. g4 Ne7 39. Bxh6 $18 {Stockfish10}) 27... Bxf5 28. Bd3 (28. Qc7) 28... Rac8 29. Qb1 (29. Qb3 $11) (29. Qe2 $14 {pm analysis, both put the Wh Q on a more active square}) 29... Bxd3 (29... Be6 {considered} 30. Bxh7 Qf6 31. Rfe1 $16 {Bl does not have enough for the pawn}) 30. Rxd3 (30. Qxd3 f3 (30... Bxb2 $14) 31. g4 Qf6 32. Bg3 Qxb2 33. Bh4 Rd6 34. Be7 Re6 35. Bb4 $16) 30... Qf5 (30... Qf7 31. Re1 Re8 $14) 31. Rfd1 {too cautious} (31. Rf3 Qxb1 32. Rxb1 Rc2 33. Bxf4 Rf8 34. b3 d4 35. g3 $16 {Stockfish10}) 31... Rc4 $11 32. R3d2 Qg5 (32... Qxb1 {considered & pm analysis} 33. Rxb1 Rdc8 (33... Be5 34. Re1 Rd7 35. Kf1 Bc7 $11) 34. Kf1 $14) 33. Qd3 Bf6 {prevents Qxc4} 34. Qf3 (34. Qb3 Re4 ( 34... Rd7 35. Qxc4) (34... b6 35. Kh1 $14) 35. Kh1 d4 36. Qxb7 f3 37. g4 Re1+ 38. Bg1 Rxd1 39. Rxd1 Qd5 40. Qxa7 h5 41. Bh2 hxg4 42. hxg4 Qe6 43. Qc7 Qxg4 44. Qg3 $16 {Stockfish10}) 34... Re4 35. Kf1 (35. Re2 Rxe2 36. Qxe2 Qf5 $14 { Stockfish10}) 35... Qe5 {the wrong way round} (35... Rde8 {prevents Re2 in response} 36. g4 $11) 36. Qb3 (36. Re2 Rxe2 37. Qxe2 Qxe2+ 38. Kxe2 Bxb2 39. Rb1 Bxa3 40. Rxb7 Bd6 41. Rxa7 $2 (41. Kf3 d4 $11) 41... f3+ $19) (36. Qd3) 36... Rd7 (36... Qe6 $17 {Stockfish10} 37. Rc2 (37. Qxb7 Re8 $19) 37... Re8 38. Rcc1 Bd4 $15 39. Qxb7 Re2 40. Bg1 f3 $19 {Stockfish10}) 37. Qb5 $2 (37. Qf3 $11 ) (37. g4 fxg3 38. Bxg3 Qf5 39. Kg2 d4 40. Qd3 $11 {pm analysis & Stockfish10}) (37. Rxd5 $2 Rxd5 38. Qxd5 Re1+ 39. Rxe1 Qxd5 $19) 37... Re7 $19 38. g4 Re1+ 39. Kg2 (39. Rxe1 Qxe1+ 40. Kg2 Qxd2 $19) 39... f3+ 40. Kxf3 Qxh2 (40... Qe4+ $1 {Stockfish10} 41. Kg3 Rxd1 42. Rxd1 h5 43. f3 h4+ 44. Kg2 Qc2+ 45. Kf1 Qxd1+ 46. Kg2 Re2+ 47. Qxe2 Qxe2+ 48. Kh1 Qxf3+ 49. Kg1 Bd4#) 41. Rxe1 Rxe1 42. Qc5 { there might be a mate on f8} (42. Qxd5 Qxh3+ 43. Kf4 Qh2+ 44. Kf3 Re5 (44... Qh1+ {and swapping Qs is a human response}) 45. Qc4 Qh3+ 46. Kf4 Qh6+ 47. Kg3 Qxd2 {Komodo12}) 42... Qxh3+ 43. Kf4 Re4+ 44. Kf5 Qxg4+ (44... Qf3# {missed till pm analysis}) (44... Qxg4+ 45. Kxf6 Qg6#) 0-1 [Event "Dyfed League:Aberystwyth-CardiganB"] [Site "?"] [Date "2019.01.22"] [Round "?"] [White "Watkin-Jones, A."] [Black "Brewer, Joshua"] [Result "1-0"] [ECO "A24"] [WhiteElo "1928"] [BlackElo "1400"] [PlyCount "115"] [SourceVersionDate "2019.01.23"] 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. d3 (5. Nf3 {main}) 5... d6 6. e3 ( 6. e4 {main}) 6... e5 7. Nge2 Nbd7 (7... c6 {main}) 8. O-O Rb8 9. Rb1 a6 10. b4 b6 11. Nd5 Bb7 (11... Nxd5 12. cxd5 Nf6 13. e4 Nh5 14. Rb3 Bd7 15. Rc3 f5 16. f3 Rc8 17. Qc2 fxe4 18. dxe4 Rf7 19. Be3 Rb8 20. Rc1 Bb5 21. a4 Bxe2 22. Qxe2 Qc8 23. Qf1 Nf6 24. Bh3 $18 {Vu Dinh-Bui Ha Duc, VIE ch tm 2001,1-0}) 12. Bb2 ( 12. e4 {Komodo12}) 12... Nxd5 (12... c6 $11) 13. cxd5 Nf6 14. Qb3 Qd7 15. Rbc1 Rfc8 16. Nc3 c6 (16... c5) 17. Na4 Ba8 18. dxc6 Bxc6 19. Bxc6 Rxc6 20. Rxc6 Qxc6 21. Rc1 (21. e4 $11 {Komodo12}) 21... Qd7 (21... Qf3 $11 {Komodo12}) 22. Kg2 b5 (22... h5) 23. Nc3 d5 (23... Rc8) 24. Ne2 Qf5 (24... d4 25. e4 (25. exd4 exd4 26. Nxd4 Nd5 27. Re1 Rc8 $11 {Komodo12})) 25. h3 e4 $5 (25... Qe6 $11) 26. Bxf6 (26. Nd4 Qd7 27. dxe4 Nxe4 28. Nc6 Ng5 29. g4 Rb6 30. Nd4 Ne6 $14 { Komodo12}) 26... Bxf6 (26... Qf3+ 27. Kg1 (27. Kf1 exd3 28. Qxd3 Qh1+ 29. Ng1 Bxf6 30. Rc6 Kg7 $11) 27... Bxf6 28. Nf4 d4 $11 {Komodo12}) 27. d4 (27. Nf4 Rd8 28. Rc5 exd3 29. Qxd3 Qxd3 30. Nxd3 Rd6 31. Kf3 $16 {Komodo12}) 27... h5 $2 { attacking the K position, but, a slip, which loses a crucial pawn & the game} ( 27... Be7 28. Nf4 Rd8 29. Rc6 g5 30. Ne2 Rd6 31. Rxd6 Bxd6 $11 {Komodo12}) 28. Nf4 Rd8 29. Rc5 $18 Be7 30. Rxd5 Rxd5 31. Qxd5 {a natural move, although Wh spent some time thinking about it.} (31. Nxd5 Qf3+ 32. Kg1 Bd8 $14) 31... Qxd5 (31... Bxb4 32. Qxf5 gxf5 33. Nxh5 a5 {Wh does need to ensure that the distant passed pawn can be stopped} 34. Nf6+ Kf8 35. Kf1 a4 36. Ke2 Ba5 37. Nd7+ Ke7 38. Nc5 Kf6 39. Kd1 $18) 32. Nxd5 Bd8 33. f3 {since the Q side is blocked- Wh needs an entry elsewhere} exf3+ 34. Kxf3 f6 35. Nf4 (35. h4) (35. g4) 35... Kf7 36. Ke4 a5 37. a3 {this leaves a possible vulnerable pawn on b4} (37. bxa5 { Julie} Bxa5 38. Kd5 Be1 39. Kc6 Bxg3 40. d5 $18 {Komodo12}) 37... axb4 38. axb4 Be7 39. Nd3 Bd6 {loses a crucial square- athough the Wh pawn must move, this is best left till later. Dd6 is needed by the Bl K!} (39... Ke6 $1 {stops Wh K entry} 40. d5+ (40. Nf4+ Kf7 41. Nd3 Ke6 {repeats}) 40... Kd6 41. g4 hxg4 42. hxg4 f5+ (42... Bf8 43. Nf4) 43. gxf5 gxf5+ 44. Kxf5 Kxd5 45. e4+ Kd6 (45... Kc4 46. Ne5+ Kb3 47. Nc6 $18 {Komodo12}) 46. Nf4 Kc6 47. Nd3 Kd6 48. Nc5 Kc6 49. Na6 Kd6 $11 {Bl just manages a blockade, because the b4 pawn is vulnerable. }) 40. g4 $18 hxg4 41. hxg4 Ke7 (41... Ke6 42. Nc5+ Ke7 43. Kd5 $18) 42. Kd5 Bh2 43. Kc5 $18 (43. Kc6 {Julie, stays on the Wh squares & prepares to shepherd the d paswn home. The b5 pawn is not all important, though an excellent security investment.} Bg3 (43... Bg1 44. d5 Kd8 45. d6 f5 (45... Bxe3 46. Nc5 Bxc5 47. bxc5 b4 48. d7 b3 49. Kd6 b2 50. c6 b1=Q 51. c7#) 46. Nc5 { mating}) 44. d5 Bd6 45. Nc5 Bg3 46. Nb7 $18 {Komodo12}) 43... f5 (43... Bg1 44. Nf4 Kf7 45. Ng2 $18) 44. gxf5 (44. g5 Bg1 45. Nf4 Ke8 46. Ng2 Kd7 47. Kxb5 $18 {Komodo12}) 44... gxf5 45. Nf4 (45. Kxb5) 45... Bg1 46. Kxb5 Kd6 (46... Bxe3 47. Nd5+) 47. Ng2 f4 48. Nxf4 (48. exf4 {is a little better as then the 2 Wh pawns are futher apart}) 48... Bxe3 49. Ne2 Bg5 50. Ka6 Kc7 51. b5 Kb8 { there are many different ways for Wh to win- it becomes a matter of taste or what you see at the time as working} 52. b6 (52. Kb6) (52. d5) 52... Be3 53. d5 Bc5 54. Nc3 (54. Kb5 Be7 55. Kc6) 54... Bd6 55. Ne4 (55. Nb5 {alternative} Be5 56. d6 (56. Na7)) 55... Bf8 56. Nf6 (56. d6 Kc8 57. b7+ Kb8 58. d7 Be7 59. Nd6 {works} (59. Kb6 Bd8+ 60. Kc6 Ka7 61. Nc5 Bc7 62. Na6 Kxa6 63. b8=Q Bxb8 64. d8=Q Ba7 65. Qd3+ Ka5 66. Qb5# {quickest, but not one humans would go in for normally.})) 56... Bd6 57. b7 $1 (57. Nd7+ Kc8 58. b7+ Kxd7 59. Ka7 Bc7 60. b8=Q Bxb8+ 61. Kxb8 Kd6 62. Kb7 Kxd5 {would still allow Bl to draw}) 57... Kc7 58. Ne8+ (58. Ka7 {alternative}) 1-0 [Event "Dyfed League:Aberystwyth-CardiganB"] [Site "?"] [Date "2019.01.22"] [Round "?"] [White "Osinga, Awne"] [Black "Francis, Matthew"] [Result "0-1"] [ECO "B28"] [WhiteElo "1350"] [BlackElo "1712"] [PlyCount "86"] [SourceVersionDate "2019.01.23"] 1. e4 c5 2. Nf3 a6 3. a4 e6 (3... Nc6 {main}) 4. c4 (4. d4) (4. Nc3 {main lines }) 4... Nc6 5. Be2 (5. Nc3 {played 2-0}) 5... g6 6. O-O (6. d4 $14 cxd4 7. Nxd4 $14 {Komodo12}) 6... Bg7 7. Nc3 Nge7 8. d3 O-O 9. Be3 d6 10. Qc1 (10. d4 cxd4 11. Nxd4 Nxd4 12. Bxd4 Bxd4 13. Qxd4 Nc6 14. Qd2 e5 15. Rad1 Nd4 $11 {Komodo12} ) 10... Nd4 $15 11. Bd1 e5 (11... Nec6) 12. Bh6 f5 13. Bxg7 (13. Bg5 Bf6 14. Bxf6 Rxf6 15. a5 $11 {Komodo12}) 13... Kxg7 14. Nxd4 cxd4 15. Nd5 Nxd5 (15... fxe4 16. dxe4 Bd7 $15 {Komodo12}) 16. cxd5 (16. exd5 $11 {Komodo12}) 16... f4 ( 16... fxe4 {sets up a protected passed pawn for Bl, for the ending} 17. dxe4 a5 18. Ra3 Bd7 $15 {Komodo12}) 17. f3 {definitely makes the Wh b bad} (17. a5) 17... a5 (17... Rf7 18. Qd2 Rc7 19. Qa5 Bd7 20. Qb6 Be8 21. Bb3 Rac8 22. Bc4 Rf7 23. Qxd8 Rxd8 24. Kf2 Rc8 $15 {Komodo12}) 18. Be2 (18. Rf2 Bd7 19. Rc2 $15 {Komodo12}) 18... Bd7 19. b3 b5 20. Qe1 (20. axb5 Bxb5 21. Qd2 Qb6 $15 { Bl has active play on the Q side}) 20... b4 $17 {now Bl has an advance invasion point at c3} (20... bxa4 21. bxa4 Rb8 $17 {alternative}) 21. g4 { (draw?)} Rc8 $19 22. Kf2 Qh4+ (22... h5 $19) (22... Rc3 $19) 23. Kg2 Qxe1 24. Rfxe1 Rc2 $17 25. h3 (25. Rac1 Rc3 26. Rb1 Rfc8 27. Rb2 $17 {Komodo12}) 25... Rfc8 $19 26. Kf1 R8c3 27. Rab1 Bc8 {relocating an otherwise dormant piece} 28. h4 Ba6 29. Red1 Ra2 30. Ra1 (30. Rbc1 Ra3 31. Rb1 Raxb3 $19 {Komodo12}) 30... Rxa1 31. Rxa1 Rxb3 {first fruits} 32. g5 Bxd3 {simplest} (32... Rxd3 33. Bxd3 Bxd3+ 34. Ke1 b3 35. Rc1 b2 36. Rc7+ Kf8 37. Rb7 b1=Q+ $19 {Komodo12}) 33. Bxd3 Rxd3 34. Ke2 Rc3 (34... Re3+ 35. Kd2 (35. Kf2 d3 36. Rd1 b3 $19) 35... Rxf3 $19 ) 35. Rd1 b3 (35... Re3+ 36. Kf2 d3) 36. Rb1 Kf7 {just bringing the last dormant piece into play, Wh can only sit & watch} 37. Rb2 Ke8 38. Rb1 Kd7 39. Rb2 Kc7 40. Rb1 Kb6 41. Kd2 Kc5 42. Rc1 Rxc1 43. Kxc1 Kb4 (43... d3 {would be a little bit quicker}) 0-1