Clean Sweep

Aberystwyth continued its good start to the season on against Steynton C on Monday 22 October at the Emlyn Cafe, Tanygroes. It is never a good idea to hang a piece against Rudy van Kemenade, as Colin Denham did on top board for Steynton in a Dutch Defence. Rudy temporarily gave back the piece but soon crashed through on the kingside. Another dubious strategy is to castle queenside in a Sicilian. Julie van Kemenade, playing White against Gwyn Evans had no trouble switching her attack to the other wing, weakened by the advance of the c-pawn, for a decisive victory. James Cook, back in the team after a longish break, played his trademark Caro-Kann, and used the key white-squared bishop to break up Ray Greenwood's kingside for a winning attack. Ian Finlay dominated the centre in a Tarrasch Queen's Gambit against Margaret Baron, and a series of tactical errors by Black left the result in no doubt. Aberystwyth's first clean sweep of the season, 4-0.

[Event "DyfedLeague:SteyntonC-Aberystwyth"] [Site "?"] [Date "2018.10.22"] [Round "?"] [White "Denham, C."] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "A80"] [WhiteElo "1617"] [BlackElo "2023"] [Annotator "kemen"] [PlyCount "64"] [EventDate "2018.10.23"] 1. Nf3 f5 2. d4 Nf6 3. Nc3 (3. g3 {main}) 3... g6 4. e3 {encloses the B} (4. Bg5 {letting the B out & looking for control over e4 fits in better with Wh's last move}) 4... Bg7 5. Be2 (5. Bc4 d5 {is most frequent, though Wh only gets 20% of the results}) (5. Bd3 {looks more active}) 5... d6 6. O-O O-O 7. Bd2 (7. d5 e5 8. dxe6 Bxe6 9. Ng5 Qe7 10. b3 d5 11. Bf3 c6 12. Ne2 Ne4 13. Rb1 Nxg5 { Bolhovitin-Baumgaertel, BEM ch U16, Tamm 2001,0-1}) (7. Re1 Nc6 8. a3 a5 9. Bb5 d5 10. Ne5 Na7 11. Be2 Ne4 12. Bf3 Be6 13. Nd3 b6 14. Nf4 Bf7 15. Nb1 e5 { Bocca-De Paula, Goiana ch 2016,0-1}) 7... Nc6 (7... Qe8 {also in search of e5} 8. Re1 Qf7 (8... e5) 9. g3 (9. Ng5) 9... Ne4 10. Kg2 c6 11. Bd3 Nxd2 12. Qxd2 h6 13. Qd1 g5 (13... e5 $15) 14. b3 Nd7 15. h3 Nf6 (15... e5) 16. Qc1 Qh5 17. Qd1 f4 $15 {Ziukelis-Gicaga, Kaunas cg, 2013,0-1}) 8. a3 e5 {Wh's setup is very passive, so Bl sets up a pawn centre} 9. Bc4+ (9. d5 $5 Ne7 10. Bc4 h6 { Bl has a comfortable King's Indian structure} (10... Kh8 11. Ng5 h6 12. Ne6 Bxe6 13. dxe6 d5 $15) 11. Nxe5 dxe5 12. d6+ Kh7 13. dxe7 Qxe7 $15 {but a bit similar to the game}) 9... Kh8 (9... d5 10. dxe5 dxc4 11. exf6 Qxf6 12. e4 $11) 10. dxe5 dxe5 11. Ng5 {wasting time , as the threat is easily dealt with} (11. e4 f4 {and Bl prepares a K side pawn advance}) 11... Qe7 12. Nf3 e4 $17 { Bl has gained e4 & with dominance in the centre can hope for a K side attack. The B on d2 is an obstruction for Wh} 13. Rb1 $2 (13. Nd4 Ne5 14. Ba2 (14. Nd5 $2 {Iolo} Qf7 $1 $19 {Komodo12} (14... Nxd5 15. Bxd5 Rd8 (15... c6 $17 {only}) 16. Ba2 f4 $19 {Komodo12}) 15. Bb4 Nxc4 16. Bxf8 Bxf8 17. Nxf6 Qxf6 $19) 14... c5 15. Nde2 Rd8 $17 {Komodo12}) 13... exf3 $19 14. Qxf3 Ne5 15. Qe2 c6 (15... Nxc4 16. Qxc4 Be6 17. Qh4 Rfe8 {simplest, but Bl was after a K side attack in the absence of the N protector on f3}) 16. Bb3 Nfg4 17. Na2 $2 (17. h3) 17... Nxh2 18. f3 (18. Kxh2 Qh4+ 19. Kg1 Ng4 {and Wh must give up the Q to stop mate} ) (18. Bb4 Qh4 (18... Nhf3+ $1 19. gxf3 Qg5+ 20. Kh2 f4 21. Rh1 (21. Bxf8 Qh5+ 22. Kg2 Bh3+ 23. Kh2 Bg4+ 24. Kg2 Qh3+ 25. Kg1 Bxf3 26. Bxg7+ Kxg7 27. exf4 Qg2# {Komodo12})) 19. f3 Nxf1 20. Bxf8 Ng3 21. Bxg7+ Kxg7 22. Qd1 Be6 $1 23. Bxe6 Rd8 24. Qe1 Nxf3+ 25. gxf3 (25. Kf2 Ne4+ 26. Ke2 Nxe1 27. Rxe1 Qf2#) 25... Qh1+ 26. Kf2 Qh2# {Komodo12}) 18... Qh4 (18... Nxf1 {simplest, when Bl is a R up- but the K side still looked promising}) 19. Be1 Qh6 20. Rf2 Nhg4 { returning some material to leave a weakened K side} (20... f4 21. exf4 Qxf4 { considered} 22. Rd1 Nhxf3+ {Komodo12} 23. gxf3 Qg3+ 24. Kh1 Bg4 $1 {Komodo12} ( 24... Nxf3) 25. fxg4 Qh3+ 26. Kg1 Rxf2 27. Bxf2 Nf3+ 28. Qxf3 Qxf3 $19) 21. fxg4 Nxg4 22. g3 Nxf2 (22... Re8 {slightly preferred by Komodo12 as the N is very well placed} 23. Rf3 b6 24. Rd1 Ba6 25. Qg2 Nxe3 $19) 23. Qxf2 (23. Bxf2 $5) 23... Re8 24. Rd1 Bxb2 {the Wh pawns are now all isolated} (24... Be6 25. Bxe6 Rxe6 26. Rd7 Rae8 27. Bd2 R6e7 {alternative}) 25. Rd3 Be5 {avoiding any long diagonal threats} 26. Nc1 (26. Bc3 $5) 26... Qg7 27. Ne2 Be6 28. c4 Rad8 29. Nd4 Bg8 (29... c5 $2 30. Nxe6 Rxd3 (30... Qe7 31. Nxd8 Rxd8 32. Rxd8+ Qxd8 {and Wh is a piece up}) 31. Nxg7 Bxg7 32. Qc2 Rexe3 33. Bf2 Rxb3 34. Bxe3 Rxe3 35. Qa4 a6 36. Qd7 Bd4 37. Kg2 $15 {gives up most of Bl's advantage}) 30. Rd1 c5 31. Ne2 Rxd1 32. Bxd1 Bxc4 0-1 [Event "DyfedLeague:SteyntonC-Aberystwyth"] [Site "?"] [Date "2018.10.22"] [Round "?"] [White "Van Kemenade, J."] [Black "Evans, Gwyn"] [Result "1-0"] [ECO "B23"] [WhiteElo "1755"] [BlackElo "1354"] [Annotator "kemen"] [PlyCount "89"] [EventDate "2018.10.23"] 1. e4 c5 2. Nc3 Nc6 (2... d6 3. Bc4 Nc6 4. a3 a5 5. f4 e6 6. Nf3 Nge7 7. d3 g6 8. O-O Bg7 9. Qe1 Nd4 {Leah-Evans, Dyfed League 2017,0-1}) 3. f4 d6 (3... e6 4. Nf3 Bd6 5. e5 Bc7 6. Bc4 Nge7 7. O-O O-O 8. Qe1 {Hardman-Evans, Dyfed League apr 2018,1-0}) 4. Nf3 Bg4 (4... g6 {main}) 5. Bb5 Qc7 (5... a6) (5... e6) (5... Rc8 {main lines}) 6. d3 (6. O-O) (6. h3) 6... e6 7. O-O O-O-O (7... Nge7 8. h3 (8. f5 e5 9. h3 Bxf3 10. Qxf3 f6 11. Qh5+ Kd8 12. Be3 {Forgacs-Maraczi, Nyireghaza op 1994,1-0}) 8... Bh5 9. Qe1 (9. g4 Bg6 10. f5 $18) 9... Bxf3 10. Rxf3 O-O-O 11. Be3 $11 {Ott-Meyling,GER ch U10, Oberhof 2011, 0-1}) 8. Bxc6 Qxc6 9. Qe1 (9. h3 Bxf3 10. Qxf3 Ne7 11. f5 exf5 12. Qf2 g6 13. Bg5 Bg7 14. Qh4 Bd4+ 15. Kh1 f6 16. Bxf6 Bxf6 17. Qxf6 Rhe8 18. Rae1 $14 {Komodo12}) 9... Nf6 10. Nd2 (10. e5 Bxf3 11. Rxf3 Nd7 12. Ne4 h6 13. exd6 Bxd6 14. Nxd6+ Qxd6 15. Be3 Kb8 16. a3 $14 {Komodo12}) (10. Nh4 d5 11. h3 Bh5 12. g4 dxe4 13. dxe4 Bxg4 14. hxg4 Nxg4 15. Qe2 $16 {Komodo12}) 10... Bh5 11. a4 (11. h3 {considered by Wh, but decided not to risk weakening the K side} h6 12. f5 exf5 13. Rxf5 (13. exf5 d5 14. g4 Bxg4 15. hxg4 Bd6 16. Qe2 Kb8 17. Qg2 h5 18. g5 Ng4 19. Nf3 $16 {Komodo12}) 13... Bg6 14. Rf1 d5 15. exd5 Nxd5 16. Nc4 Nxc3 17. bxc3 Bd6 18. Qf2 Rhe8 19. Rb1 $14 {Komodo12}) 11... a6 12. Nc4 (12. h3 $16) (12. Qh4 $16) ( 12. a5 $16) 12... d5 13. Ne5 Qc7 14. Bd2 Bd6 15. Na2 {preparation for a Q side attack} (15. exd5 exd5 16. Qg3 Bg6 (16... Kb8) 17. Rae1 $14) 15... b6 {best not to move pawns on the side where one is under attack} (15... Kb8 $15) (15... Bxe5 16. fxe5 Qxe5 17. exd5 (17. Bf4 Qd4+ 18. Be3 Qxb2 19. Qa5 Nd7 20. exd5 Qe5 21. Rae1 Qxd5 22. Nc3 Qe5 23. Ne4 Qc7 24. Qc3 Bg6 25. Nd2 $11 {Wh retains Q side chances with the open B file}) 17... Qxe1 18. Raxe1 Nxd5 19. b4 cxb4 20. Nxb4 $11) 16. exd5 exd5 17. b4 Rhe8 18. Qg3 (18. Qh4) (18. Qf2) 18... Bg6 ( 18... Kb7) 19. bxc5 (19. b5 a5 20. Nc6 $16) (19. a5) 19... Qxc5+ (19... Bxc5+ 20. Kh1 Nd7) 20. Kh1 Kb7 21. Be3 (21. Nb4) (21. Bb4) (21. Bc3) (21. a5) 21... Qc7 (21... d4 22. Qf3+ Nd5 23. Bxd4 Qxd4 24. c3 Qc5 25. d4 Qa5 26. f5 Bxe5 27. dxe5 Bh5 28. Qxh5 Rxe5 29. Nb4 $11 {Komodo12}) (21... Qxc2 {is too dangerous} 22. Rfc1 $16 Bxe5 (22... Qe2 23. Rab1 Bxd3 24. Rxb6+ $18) 23. Rxc2 Bxa1 24. Bg1 $18 {Komodo12}) 22. Rfb1 $16 (22. Rab1) 22... Bc5 23. a5 (23. Bxc5 Qxc5 24. a5 b5 25. Nb4 $16 {Komodo12}) 23... Bxe3 (23... Nh5 $1 {Komodo12} 24. Qe1 Bxe3 25. Qxe3 b5 26. Nc3 (26. Nb4 f6 27. Nbc6 Ra8 28. Nd4 Ra7 (28... fxe5 29. Nxb5 axb5 30. Rxb5+ Kc8 31. Rc5 $16 {Komodo12}) 29. Nxb5 (29. Ndc6 Raa8 30. Nd4 Ra7 $11) 29... axb5 30. a6+ Ka8 31. Qd4 Rd8 $15 {Komodo12}) 26... Nxf4 27. Rxb5+ axb5 28. Nxb5 Qxe5 29. Qb6+ Kc8 30. Qc6+ Kb8 31. Qb6+ $11 {repetitition, Komodo12}) 24. Qxe3 d4 (24... b5 25. Qd4 Rc8 26. Nb4 Qc5 27. Qxc5 (27. Qb2 d4 28. Re1 h5 29. h3 $14 {Komodo12}) 27... Rxc5 28. Re1 Rc7 29. g4 Rce7 30. Nbc6 Rc7 31. f5 $16 {winning the B-Komodo12}) 25. Qf3+ $18 {winning the B in a different way} Be4 (25... Nd5 26. Rxb6+ Ka8 (26... Kc8 27. Rc6) 27. Nb4 Rxe5 28. fxe5 Qxe5 29. Nxd5 Rxd5 30. Rab1 {mating-Komodo12}) 26. dxe4 b5 27. Nb4 Re6 28. Qd3 (28. Nxf7 {Rudy & Komodo12} Qxf7 29. e5+ Kb8 30. exf6 (30. f5 Rxe5 31. Nc6+ {Komodo12}) 30... Rc8 31. fxg7 Qxg7 32. f5 $18 {Komodo12}) 28... h5 29. Ra3 (29. Nxa6 { returning the piece to break through to the K} Rxa6 (29... Kxa6 30. Rxb5 Ka7 31. Rb6 Qc8 32. h3 $18) 30. Rxb5+ Ka8 31. Rc5 Qb7 32. Rc7 $18 {Komodo12}) 29... Ng4 30. Nxg4 hxg4 31. Nd5 (31. e5 g5 32. Qe4+ Kc8 33. fxg5 Qxe5 34. Qxe5 (34. Qxg4) 34... Rxe5 35. Nc6 $18 {Komodo12}) 31... Qc5 32. c4 (32. Ra4) (32. Rab3) 32... dxc3 33. Rxc3 Qd6 34. Qg3 (34. Rbc1 Rd7 35. e5 $18 {Komodo12}) (34. Qc2 { Rudy & Komodo12} Rxe4 35. Rc7+ Kb8 36. Rc1 (36. Qxe4 Qxd5 37. Qc2 $18 (37. Qxd5 $18))) 34... Rxe4 35. Qf2 (35. Rc7+ Kb8 36. Qf2 Rd4 37. Qxd4 Qxc7 38. Rd1 $18 { Komodo12}) 35... f5 (35... Qxd5 36. Qb6+ Ka8 37. Qxa6+ Kb8 38. Rxb5+ Qxb5 39. Qxb5+ Ka8 40. Qc6+ Ka7 41. Qb6+ Ka8 42. Qxd8+ Ka7 43. Qb6+ Ka8 44. Rc8#) (35... g3 {best try- Komodo12} 36. Qg1 $1 Kb8 37. h3 Rd7 38. Rbc1 Re8 39. Nc7 Ree7 40. Rc6 $18) 36. Rc7+ Qxc7 37. Nxc7 Kxc7 (37... Red4 38. Re1 Kxc7 39. Qc2+ Kb8 40. Qxf5 $18 {Komodo12}) 38. Qb6+ Kd7 (38... Kc8 39. Qc6+ $1 {not letting the K out via d7} Kb8 40. Qxa6 Rd5 41. Qb6+ Kc8 42. Qc6+ Kd8 43. Qxd5+ Ke8 44. Rd1 Ke7 45. Qd8+ Kf7 46. Rd7+ Kg6 47. Qg5+ Kh7 48. Qxg7#) 39. Rd1+ Ke7 40. Qxd8+ Kf7 41. g3 {a precaution with time getting short for both sides} (41. Rd7+ Kg6 42. Qg5+ Kh7 43. Qxg7#) 41... Re8 (41... Re7 42. Qd5+ Kf6 43. Qg8 Re6 44. Rd7 Re1+ 45. Kg2 Kg6 46. Qxg7+ Kh5 47. Qg5#) 42. Rd7+ Kf8 43. Qg5 Re1+ 44. Kg2 Re2+ 45. Kf1 {a complex game} 1-0 [Event "DyfedLeague:SteyntonC-Aberystwyth"] [Site "?"] [Date "2018.10.22"] [Round "?"] [White "Greenwood, Ray"] [Black "Cook, James"] [Result "0-1"] [ECO "B15"] [WhiteElo "1234"] [BlackElo "1491"] [Annotator "kemen"] [PlyCount "36"] [EventDate "2018.10.23"] 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ {main} (5. Ng3 Bg4 6. Be2 Nbd7 7. d4 Bxf3 8. Bxf3 e6 9. O-O Bd6 10. Re1 O-O 11. c3 Qc7 $11 {Morcom-Cook, Dyfed League 2012,1-0}) 5... exf6 (5... gxf6 {main}) 6. d4 Bd6 7. Bd3 O-O 8. O-O Re8 (8... Bg4 {more frequent}) 9. Re1 (9. h3 {main}) (9. c3) 9... Bg4 { 40% for Wh} (9... Be6 {more frequent, though 80 % for Wh}) 10. h3 {a small error, but it terribly weakens Wh's K side} (10. Rxe8+ Qxe8 11. Be3 Nd7 12. h3 Be6 13. c4 Nf8 14. d5 cxd5 15. cxd5 Bd7 16. Qb3 Qb8 17. Nd4 Bh2+ 18. Kh1 Bf4 { Kunze-Voigt, Oberliga Nord 2015,0-1}) 10... Rxe1+ 11. Qxe1 Bxf3 12. gxf3 Nd7 $15 13. Qe4 g6 14. Bh6 {looks like Wh is attacking, but instead he needs careful defence} (14. Qh4 Qb6 15. b3 Re8 16. Bd2 Qd8 17. f4 Bc7 18. Re1 Rxe1+ 19. Bxe1 Nb6 20. f5 Nd5 $15 {Komodo12}) 14... f5 15. Qe2 (15. Qe3 Qh4 16. Bg5 Qxh3 17. f4 Qxe3 18. fxe3 Re8 $17 {Komodo12}) 15... Qh4 $19 16. Qe3 {too late} (16. Bd2 Qxh3 (16... Nf6 17. Qf1 Nd5 (17... Qxd4) 18. Re1 Qxd4 $19) 17. f4 Nf6 18. Qe3 Qh6 19. Qg3 Re8 $19 {Komodo12}) 16... f4 17. Bxf4 Bxf4 18. Qe1 Qxh3 ( 18... Qxh3 {Bl has lots of winning lines eg} 19. c4 Ne5 $1 20. dxe5 Re8 21. Qe3 Bh2+ 22. Kh1 Bxe5+ 23. Kg1 Bh2+ 24. Kh1 Bf4+ 25. Kg1 Rxe3 26. fxe3 Bxe3# { Komodo12}) 0-1 [Event "DyfedLeague:SteyntonC-Aberystwyth"] [Site "?"] [Date "2018.10.22"] [Round "?"] [White "Finlay, I."] [Black "Baron, M."] [Result "1-0"] [ECO "D30"] [WhiteElo "1363"] [BlackElo "850"] [Annotator "kemen"] [PlyCount "43"] [EventDate "2018.10.23"] 1. d4 e6 2. c4 c5 3. e3 d5 4. Nf3 Nd7 {leaves d5 a little insecure} (4... Nf6 { main}) 5. Nc3 Be7 $2 (5... Ngf6 {transposes back to main lines of the Tarrasch Defence}) 6. cxd5 e5 $2 {gives Wh 2 running pawns in the centre} (6... exd5 7. Nxd5 Ngf6 $16 {was the best try}) 7. dxe5 c4 8. e6 (8. Bxc4) (8. Qa4) 8... fxe6 9. dxe6 Nc5 10. Qxd8+ Bxd8 11. Bxc4 $18 Be7 (11... Bxe6 {is preferable, to get rid of the advanced pawn}) 12. Nd4 Nd3+ $2 13. Bxd3 {Bs can go backwards} Nf6 14. Bd2 g6 {preventing Nf5} (14... O-O 15. Ncb5 a6 16. Nc7 Rb8 17. Nf5 Bc5 18. Rc1 $18) 15. O-O Bd6 16. Ncb5 Be5 17. Rac1 O-O 18. Bb4 (18. f4) 18... Re8 19. Bc4 Rd8 {seeking activity, but ending the game quickly} (19... b6 20. Nd6 Bxd6 21. Bxd6 Bb7 22. Be5 Nd5 23. e4 Ne7 24. Nb5 $18 {Wh has too many pieces & in active positions}) 20. e7+ Kg7 21. exd8=Q Rb8 22. Qf8# 1-0