Sunday 10 February 2019

The More Complicated the Better

On Monday 4 February, not long after their 3-1 away win against Steynton B, Aberystwyth played the rematch. Only the top board pairing was the same; Rudy van Kemenade, playing Black against Mark Paffard's Reti Opening went for a Dutch style counter-attack, and got the kind of complications he thrives on. As expected in such contests, both players missed chances, but White's king proved the more vulnerable. Adam Watkyn-Jones lost a pawn early on in a Queen's Gambit Declined against Colin Denham, but his kingside pressure eventually won him a piece. With queens on and only a couple of pawns left for each player, there was still a lot of play left in the position when Black lost on time. Julie van Kemenade's early central pawn break against Scott Hammett's d4 led to an exchange of queens and a less sharp position than she usually gets in the middlegame; White's doubled pawns were not enough of a weakness to unbalance the game. Finally, in a match where the more complicated positions worked out in favour of Aber, James Cook's Exchange Variation against John Miller's French Defence left him with a weak isolated pawn and a worse ending. The match finished 2½ -1½ to Aber.

[Event "Dyfed League: Aberytstwyth-SteyntonB"] [Site "Steynton"] [Date "2019.02.04"] [Round "?"] [White "Paffard, Mark"] [Black "Van Kemenade, R."] [Result "0-1"] [ECO "A04"] [WhiteElo "1739"] [BlackElo "2021"] [PlyCount "88"] [EventDate "2019.??.??"] 1. Nf3 {Mark usually plays e4, avoiding a Petroff?} d6 2. d3 (2. d4) 2... g6 3. g3 Bg7 4. Bg2 Nc6 (4... e5) 5. Nbd2 f5 {Bl is being ambitious} (5... e5) 6. c3 Nf6 7. O-O O-O 8. Re1 {There is no need for this, as Wh has sufficient already to play e4. The text slightly weakens f2, a prime Bl attacking point in this Leningrad Dutch setup} (8. e4 {main}) 8... e5 9. e4 f4 {Deep Fritz13 & Komodo12 } (9... Kh8) (9... h6 {also played}) 10. Nf1 (10. d4 {main,opening the centre is the usual response to a side attack}) 10... Nh5 {Cloud Engines} (10... Bg4 11. h3 Bd7 12. Kh2 g5 13. d4 g4 14. Nh4 gxh3 15. Bxh3 fxg3+ 16. Nxg3 Ng4+ $19 { Talegon Rodriguez-Romero Holmes, Leon Masters League 2011, 0-1}) 11. h3 h6 12. g4 Nf6 13. g5 (13. d4 $11 {Stockfish10}) 13... hxg5 14. Nxg5 Qe7 $17 (14... Nh7 15. Qb3+ Kh8 16. Nf7+ Rxf7 17. Qxf7 Nf8 18. Qb3 Qg5 $17 {Stockfish10}) 15. Nh2 Nh5 (15... Nh7) (15... Nd8 {both Stockfish10}) 16. Ngf3 Be6 (16... Nd8) 17. Kh1 Bh6 {trying to line up against h3, but it does weaken e5} (17... Nd8) 18. d4 $11 Bd7 (18... Bc8 $5) 19. a4 (19. Qb3+ {anticipated by Bl} Kh7 20. Qxb7 Rab8 21. Qa6 (21. Qxc7 $2 Rfc8) 21... exd4 {Stockfish10} 22. cxd4 Nb4 (22... Bg7) 23. Qc4 c5 24. dxc5 dxc5 25. Ng4 Bb5 26. Qb3 Nd3 27. Rd1 c4 28. Qc2 Rfc8 $11 { Stockfish10, Bl has good piece play for the pawn}) 19... Kh7 (19... a6 { considered}) (19... a5) (19... Nf6 {Stockfish10}) 20. b4 Rg8 {underestimating the threast} (20... Bg7) (20... a6 $11) (20... Rfe8) 21. b5 $18 Nd8 22. dxe5 dxe5 23. Qd5 {both sides miscalculated around this point} (23. Nxe5 Bxh3 24. Bxh3 Qxe5 {Thought OK by Bl, but the Wh pieces get very active} 25. Nf3 Qxc3 ( 25... Qg7 26. Bb2 Nf7 27. Rg1 Qf6 28. Qc2 Qe7 29. e5 $18) 26. Ra2 Nf7 27. Rc2 Qb4 28. Rxc7 Rg7 $18 {Stockfish10, looks very precarious for Bl}) (23. Ba3 { pm analysis} Qe8 {Stockfish10} (23... Qg7 24. Nxe5 Bxh3 25. Bxh3 Qxe5 26. Nf3 { Stockfish10} Qxc3 27. Qe2 Qb3 28. Bb2 Qf7 29. Rg1 $18) 24. Nxe5 Bxb5 25. axb5 Qxe5 26. Ng4 Qxc3 27. e5 $18 {the Wh Bs have become very powerful}) 23... Be6 { looks good, but Stockfish10 finds the flaw} (23... Re8 24. Ba3 Qg7 25. Rad1 Nf6 26. Qc5 c6 27. Nxe5 b6 28. Qd4 c5 29. Qd6 Re6 30. Qc7 Rc8 31. Qxa7 Rxe5 32. Qxb6 Nf7 33. c4 $14 {Stockfish10}) 24. Qd3 (24. Qxe5 $1 Bg7 25. Ng5+ Kh8 26. Ba3 {Stockfish10 saves the Q} Bxe5 27. Bxe7 Re8 (27... Bxc3 $2 28. Bxd8 Raxd8 29. Nxe6 Bxa1 30. Nxd8 (30. Rxa1) 30... Bd4 31. Nf7+ $18) 28. Bb4 Nf7 29. Nxe6 Rxe6 30. Nf3 $16 {Stockfish 10}) 24... Nf7 25. Ba3 Qf6 (25... Qe8 26. c4 Rd8 27. Qe2 Bf8 28. c5 Nf6 $15 {Stockfish10}) 26. Ng4 Qg7 (26... Qh8 $5) 27. c4 Bg5 {going round a circuit , & clearing the h file} (27... Bxg4 28. hxg4 Nf6 29. Bb2 Rge8 30. Qe2 $11 Nxg4 31. Bh3 Nf6 32. Rg1 $18 {Stockfish10}) 28. c5 Bxg4 ( 28... Bf6 29. c6 bxc6 30. Rec1 $16 {Stockfish10}) 29. hxg4 Nf6 30. Bh3 { this ties the B down-interestingly, Stockfish10 abandons the pawn & goes for piece play elsewhere} (30. c6 bxc6 (30... Nxg4 31. Qd7 Ngh6 32. cxb7 Rab8 33. Qxc7 $18) 31. Rac1 Nxg4 32. Qd7 Nxf2+ 33. Kg1 Bh4 34. Nxh4 Rad8 35. Qe6 Nd3 36. Rxc6 Nxe1 37. Rxc7 Rge8 38. Qxf7 Qxf7 39. Rxf7+ Kg8 40. Rxa7 Nxg2 41. Kxg2 $16) (30. Qb3 Qh6+ 31. Kg1 Rg7 32. Kf1 Nxg4 33. Ke2 Nf6 34. c6 bxc6 35. Rec1 $18 { Stockfish10}) 30... Rad8 (30... Bh4 31. Qb3 (31. Nxh4 Qh6 $19) 31... Ng5 32. Nxg5+ Bxg5 33. Kg1 $11 {Stockfish10}) 31. Qc3 (31. Qc2 {pm analysis} Bh4 { Stockfish10} 32. Red1 c6 33. Kg2 Ng5 34. Nxg5+ Bxg5 35. f3 Qf7 $14) (31. Qb3 Qh6 32. Kg2 Rg7 33. Rh1 Nxe4 34. Kg1 Nd2 35. Nxd2 Rxd2 36. Bg2 Bh4 37. Bb4 Rxf2 38. Be1 Rxg2+ 39. Kxg2 g5 40. Rd1 Qf6 41. Qd5 Nh6 42. Qd3+ Rg6 43. Kf1 $16 { Stockfish10}) 31... Rge8 (31... Bh4 $11 {Stockfish10}) 32. Qc2 (32. c6 b6 33. Kg2 $14 {Stockfish10}) 32... Kg8 (32... Bh4 33. Kg2 Ng5 34. Nxg5+ Bxg5 35. f3 Qg8 $11 {Stockfish10}) 33. Rad1 Nh7 34. Bb2 (34. c6 $16) (34. b6 $16) 34... Bf6 {completing the circuit} 35. Qb3 Kf8 (35... Qh6 36. Kg2 Kg7 $19 {Stockfish10}) 36. Rd5 (36. Kg1 Nhg5 37. Bg2 c6 $15 {Stockfish10}) 36... Qh6 $19 37. Kg2 Nhg5 (37... Rxd5 {Stockfish10- something like this considered in pm analysis} 38. exd5 (38. Qxd5 Nhg5 $19) 38... e4 39. Ng1 f3+ 40. Kf1 Bxb2 41. Qxb2 Nhg5 42. Qc1 Qh4 43. Qf4 Nxh3 44. Qh2 Nfg5 $19) 38. Rh1 Nxf3 39. Kxf3 Ng5+ (39... Rxd5 $1 {Stockfish10} 40. exd5 e4+ 41. Kg2 f3+ 42. Kg1 e3 (42... Bxb2 43. Qxb2 e3 $19 {also}) (42... Qd2 43. Bxf6 Qe1+ 44. Bf1 e3 45. Bh4 e2 46. Kh2 Qd1 47. Qxf3 e1=Q $19) 43. Bxf6 Qf4 44. Qd3 e2 (44... exf2+ 45. Kxf2 Re2+) 45. Bc3 e1=Q+ 46. Bxe1 Rxe1+ 47. Qf1 (47. Bf1 Qxg4+ 48. Kh2 Ne5 {mating})) 40. Kg2 (40. Ke2 f3+ 41. Ke1 Nxe4 $19) 40... f3+ 41. Kf1 (41. Kg3 Nxe4+ (41... Nxh3 42. Qxf3 (42. Rxh3 $2 Qf4# {foreseen by Bl}) 42... Qf4+ 43. Qxf4 Nxf4 $19) 42. Kh2 (42. Kxf3 Qf4+ 43. Ke2 Qxf2+ 44. Kd1 Rxd5+ 45. Qxd5 Qxb2 $19) 42... Qf4+ 43. Kg1 Bh4 44. Rh2 Bxf2+ 45. Rxf2 Qg3+ 46. Rg2 f2+ 47. Kf1 Qxb3 $19) 41... Nxe4 {stronger than the initially planned} (41... Nxh3 42. Qxf3 $18) 42. Rxd8 (42. Qxf3 Rxd5 43. Qxe4 Rd1+ 44. Kg2 Rxh1 $19) 42... Rxd8 43. g5 (43. Kg1 Qf4 $1 (43... Qh4 44. Qxf3 Rd1+ 45. Kg2 Rxh1 46. Kxh1 Qxh3+ 47. Qxh3 Nxf2+ 48. Kg2 Nxh3 49. Kxh3 c6 {planned, though its only a pawn, enough to win}) 44. Rh2 Bh4 {and Rd2 is also coming}) 43... Qh4 (43... Qxg5 {Stockfish10}) 44. Qc2 (44. Qxf3 {only way to hold up an early mate} Nd2+) 44... Rd1+ 0-1 [Event "Dyfed League:Aberystwyth-SteyntonB"] [Site "?"] [Date "2019.02.04"] [Round "?"] [White "Watkin-Jones, A."] [Black "Denham, C."] [Result "1-0"] [ECO "D53"] [WhiteElo "1928"] [BlackElo "1630"] [Annotator "kemen"] [PlyCount "94"] [EventDate "2019.02.05"] {[%evp 0,18,19,31,14,30,28,-23,-3,-1,42,6,42,36,77,87,91,69,69,74,90]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 dxc4 5. Bg5 (5. e4 Bb4 {is the complex Vienna variation}) 5... Be7 6. e3 Nd5 (6... O-O) 7. Bxe7 Qxe7 8. Bxc4 Nxc3 (8... Qb4 9. Qb3 {scores 78 % for Wh}) 9. bxc3 c6 $146 {rather passive} (9... O-O 10. O-O Nd7 (10... b6)) 10. O-O (10. a4 {Stockfish10 & Komodo12}) 10... Nd7 11. Qb3 O-O 12. Ne5 $6 (12. a4 $14) (12. Bd3 $16 {Komodo12}) 12... Nxe5 13. dxe5 Qc5 14. Rae1 (14. Rfd1 Qxe5 15. a4 $11 {Komodo12}) 14... Qxe5 15. f4 (15. Rd1 $11) 15... Qe4 $15 16. Rf3 b5 17. Be2 Qd5 (17... e5 $15) 18. Qc2 $11 a6 19. Bd3 g6 { all of Bl's pawns are now on the same colour as his poor B} 20. h4 f5 (20... Rd8 $17) 21. h5 $11 Ra7 22. hxg6 hxg6 23. c4 Qd8 24. Rg3 (24. Rh3) 24... Rg7 ( 24... Kf7 $15 {both Engines}) 25. Rg5 e5 26. cxb5 (26. Rd1 {both Engines}) 26... cxb5 27. a4 (27. Rd1 $15 {Komodo12}) (27. Qb3+ Kh8 28. Qc3 Re8 $15 { Stockfish10}) 27... Qe7 (27... exf4 $19 {both Engines} 28. exf4 Qd4+ 29. Qf2 ( 29. Kf1 Qxf4+ 30. Kg1 Qxg5 $19) (29. Kh1 Rh7+ 30. Rh5 Rxh5#) 29... Qxd3 $19) 28. axb5 exf4 29. Qc4+ Be6 30. Qxf4 axb5 31. Bxb5 $11 {Wh has recovered the pawn} Qc5 32. Bf1 Qc3 33. Rd1 Qc8 34. Rg3 Qe8 35. Rh3 (35. Rd6 $16 {Komodo12}) (35. Be2 Qe7 36. Rd6 $16 {Stockfish10} Rc8 $11 {Komodo12}) 35... g5 (35... Rh7 {both Engines, though after} 36. Rxh7 {Komodo12 slight Wh edge, Stockfish10 definite Wh edge}) 36. Qh2 Kf7 (36... f4 37. Rh6 $18 {Komodo12}) (36... g4 37. Rh8+ $18 {Stockfish10}) 37. Rh6 $18 {plus3 Komodo12} (37. Rd6 $18 {Stockfish +20}) 37... Rg6 (37... Rfg8 38. Be2 {both Engines} g4 (38... Qb8 39. Rd6) 39. Rc1 $18) 38. Rh7+ (38. Qc7+ $1 {both Engines} Kf6 39. Qc3+ Ke7 40. Bb5 $1 Qxb5 41. Rh7+ Rf7 42. Qc7+ Bd7 43. Rxd7+ Qxd7 44. Rxf7+ Kxf7 45. Qxd7+ $18) 38... Rg7 (38... Kf6 39. Qd6 Rf7 40. Qd4+ {both Engines} Ke7 41. Rh8 Rf8 42. Rh5 Rf7 43. Ra1 $18) 39. Qh5+ (39. Qc7+ {both Engines} Qe7 40. Rxg7+ Kxg7 41. Qxe7+ { mating soon}) 39... Kf6 40. Rh6+ Rg6 (40... Ke7 {both Engines} 41. Qh2 f4 42. exf4 $18) 41. Rd6 {both players running short of time} (41. Rd8 $1 {both Engines}) 41... Rxh6 (41... Ke7 42. Ra6 Rxh6 43. Qxh6 Rf6 44. Qxg5 $18) 42. Qxh6+ Ke5 43. Rxe6+ Qxe6 44. Qxf8 {Komodo12 +3.34, Stockfish10, mate in 30.} Qb6 45. Qe7+ Kd5 46. Qxg5 Qb1 47. Qd8+ (47. g4 {Rudy & Komodo12}) (47. Kf2 { Stockfish10}) 47... Ke6 {and Bl lost on time} 1-0 [Event "Dyfed League:Aberystwyth-SteyntonB"] [Site "?"] [Date "2019.02.04"] [Round "?"] [White "Hammett, S."] [Black "Van Kemenade, J."] [Result "1/2-1/2"] [ECO "A45"] [WhiteElo "1533"] [BlackElo "1761"] [Annotator "kemen"] [PlyCount "76"] [EventDate "2019.02.05"] {[%evp 0,10,36,28,86,42,35,-8,11,-3,6,-2,4]} 1. d4 d6 2. e3 Nf6 3. f4 Nc6 (3... g6 {main}) 4. Nf3 Bg4 5. Be2 e5 $146 {Stockfish10} (5... e6 6. O-O Be7 7. c4 O-O 8. Nc3 Nd7 9. e4 e5 {Gal-Mincsovics, HUN ch tm 2014,0-1}) 6. dxe5 (6. O-O exf4 7. exf4 d5 $14) 6... dxe5 7. Qxd8+ Rxd8 8. c3 (8. Nxe5 Nxe5 9. fxe5 Bxe2 10. Kxe2 Ng4 11. Nc3 Bb4 $15 {Stockfish10}) 8... exf4 9. exf4 Bc5 $19 10. Ne5 ( 10. h3 Be6 11. Nbd2 O-O 12. g4 Rfe8 $19 {Stockfish10}) 10... Bxe2 (10... Nxe5 11. fxe5 O-O 12. Bf4 Rfe8 $19 {Stockfish10}) 11. Kxe2 Nxe5 (11... O-O $19 { Stockfish10} 12. Nxc6 bxc6 13. Bd2 Ng4 14. Kf3 h5 15. Re1 Bf2 16. Re4 f5 $19) 12. fxe5 {the rest of the game pivots round the question of whether this pawn will survive} Ng4 (12... O-O $1 {Stockfish10} 13. Nd2 (13. exf6 Rfe8+ 14. Kf3 Rd3+ 15. Kg4 Re4+ 16. Bf4 h5+ 17. Kf5 Re2 18. Kg5 Rd5+ 19. Kh4 g5+ 20. Bxg5 Rxg2 $19) 13... Rfe8 14. Nf3 Ng4 15. Bf4 f6 16. Bg3 Bd6 17. Rad1 Kf7 18. Rhe1 Nxe5 $17 {Stockfish10}) 13. Bf4 O-O 14. Nd2 Rfe8 (14... f6 $17 {Stockfish10} 15. exf6 (15. Ne4 Bb6 16. a4 a5 17. Rhf1 Rde8 18. Rae1 Nxe5 $17) 15... Rfe8+ 16. Kf3 Nxf6 17. g3 Rd3+ 18. Kg2 Re2+ 19. Kh3 Nd5 20. Bg5 Re5 $19 {Stockfish10} ) 15. Ne4 (15. Nf3 Nf2 16. Rhb1 (16. Rhf1 Nd3 17. Bg3 Nxb2 $19) 16... f6 $17 { Stockfish10}) 15... Bb6 (15... Nxe5 {Rudy} 16. Nxc5 Nd3+ 17. Kf3 Nxc5 18. Rad1 (18. Bxc7 Rd3+ 19. Kf2 Rd2+ 20. Kf3 Ne6 21. Be5 Ng5+ 22. Kf4 f6 $19) 18... Ne6 $17) (15... Be3 16. Bg3 (16. Bxe3 Rxe5 17. Bd4 Rxe4+ 18. Kf3 Rde8 $17 { Stockfish10}) 16... f5 17. Rad1 Rxd1 18. Rxd1 Bh6 19. Nf2 Nxe5 20. Bxe5 Rxe5+ 21. Kf1 Kf7 $17 {Stockfish10}) (15... Bf8 16. Rhd1 Rxd1 17. Rxd1 Nxe5 $17 { Stockfish10}) 16. Rad1 f5 (16... Rxd1 17. Rxd1 f5 18. Ng3 Nxe5 19. Nxf5 g6 20. Nd4 Nc4+ 21. Kf3 Nxb2 $17 {Stockfish10}) 17. h3 (17. Rxd8 Rxd8 18. Nd2 h6 ( 18... Re8 19. Nc4 $11) 19. h3 Nf2 20. Rf1 g5 21. Bh2 f4 22. a4 Nd3 23. a5 Be3 24. Nc4 Nxb2 25. Nxe3 fxe3 26. e6 Nc4 27. Rf6 $11 {Stockfish10}) 17... Rxd1 18. Rxd1 (18. Kxd1 Nxe5 19. Bxe5 Rxe5 20. Nd2 Kf7 $19) 18... fxe4 (18... Nxe5 $19 { Rudy} 19. Nd2 (19. Ng5 Ng6+ (19... h6 20. Kf1 (20. Nf3 Ng6+ $19) 20... hxg5 $19 ) 20. Kf3 h6 $19 {Stockfish10}) 19... Ng6+ 20. Kf3 Rd8 21. Bh2 (21. g3 Rd3+ 22. Ke2 Nxf4+ 23. gxf4 Re3+ 24. Kf1 Rxh3 $19) 21... Nh4+ 22. Ke2 Nxg2 $19 23. Nc4 Rxd1 (23... Re8+ 24. Kf1 Ne3+ 25. Nxe3 Rxe3 26. h4 Kf7 $19) 24. Kxd1 f4 $19 { Stockfish10}) 19. hxg4 $11 Kf7 20. Rd7+ Re7 21. Rxe7+ {Wh should keep Rs on, asa the Bl K now gets a bit of extra space} (21. Rd2 $11) (21. Rd8 $11) 21... Kxe7 $17 22. b4 (22. Be3 Ke6 23. Bd4 c5 24. Be3 Kxe5 25. c4 a6 $17 26. b3 Ba5 27. Bxc5 Kf4 28. Bf8 g5 29. b4 Bd8 30. a4 Kxg4 $17 {Stockfish10-with good winning chances}) 22... Ke6 $19 23. a4 c6 (23... a6 24. a5 Bg1 25. Kf1 Ba7 26. Ke2 c6 (26... g5 27. Bxg5 Kxe5 $17) 27. Kd2 g6 28. Ke2 (28. g5 Bb8 29. Ke3 Bxe5 (29... Kf5 30. g4+ Ke6 (30... Kxg4 31. Kxe4 $18) 31. Kxe4 $11) 30. c4 Bc3 $19 31. Kxe4 Bxb4 32. Bc7 Kd7 33. Bb6 Bd2 34. Kd4 Bxg5 $19 {Stockfish10})) 24. c4 ( 24. a5 Bc7 25. Ke3 Bxe5 26. c4 Bc3 $19 {as above}) 24... Bc7 (24... Bd4 $1 { Rudy-keeps cutting the K off} 25. a5 (25. b5 cxb5 26. axb5 a5 27. bxa6 bxa6 28. Kd2 a5 29. Kc2 a4 $19) 25... a6 26. Kd2 g6 {Zugzwang} 27. Bg3 (27. Kc2 Bxe5) 27... Bxe5 $19 {Stockfish10}) 25. Ke3 Bxe5 26. Kxe4 $2 (26. Bg5 {is a better try, though} b5 $1 $19 {Stockfish10} 27. axb5 cxb5 28. Kxe4 bxc4 29. b5 c3 $19 30. Bc1 Bc7 31. Kd3 Ba5 32. Ke4 c2 33. Kd3 (33. Be3 Kd6 34. Kd3 Bb6 35. Bg5 Kc5 36. Kxc2 Kxb5 $19) 33... Kd5 34. Kxc2 Kc4 35. Bg5 Kxb5 $19 {Stockfish10- the Bl B can cover the Queening square & the Wh K side pawns will be vulnerable as swell since the a pawn must be stopped by the K}) 26... Bxf4 27. Kxf4 Kf6 $11 ( 27... a5 $1 $19 {Rudy & Stockfish10- punches a hole in the Wh pawn structure, thus creating an entry route for the Bl K} 28. b5 (28. bxa5 Kd6 29. Ke3 Kc5 30. Kd3 Kb4 31. Kd4 Kxa5 32. Kc5 Kxa4 33. Kb6 Kb4 34. Kxb7 c5 $19) 28... cxb5 29. cxb5 Kd5 30. b6 Kc5 31. Ke5 Kxb6 32. Kd5 (32. Ke6 {is too slow} Kc5 33. Kf7 b5 34. axb5 a4) 32... Kc7 33. g5 b6 {and the Wh K will soon be forced to retreat when the outside passed pawn wins}) (27... b5 28. axb5 cxb5 29. c5 Kd5 30. Ke3 a5 31. bxa5 Kxc5 32. Kd3 b4 33. a6 Kb6 34. Kc4 Kxa6 35. Kxb4 Kb6 $11) 28. g5+ Kg6 $2 (28... Ke6 $11) 29. Kg4 $2 (29. Ke5 $1 $18 Kxg5 30. Kd6 Kf4 31. Kc7 Kg3 32. Kxb7 Kxg2 33. b5 cxb5 34. axb5 h5 35. Kxa7 h4 36. b6 h3 37. b7 h2 38. b8=Q h1=Q 39. Qb7+ Kh2 40. Qxh1+ Kxh1 41. c5 g5 42. c6 g4 43. c7 g3 44. c8=Q g2 45. Qh3+ Kg1 46. Kb6 $19 {Stockfish10}) 29... Kf7 30. Kf5 Ke7 31. Ke5 b6 $2 { its dangerous to make some pawn moves} (31... Kd7 $11) (31... a6 $11) 32. g3 ( 32. b5 $1 {gives Wh access to d5 or e6} Kd7 (32... c5 {is worse-Stockfish10} 33. Kd5 Kd7 34. g3 g6 35. g4 Ke7 36. Kc6 $18) 33. bxc6+ Kxc6 34. Ke6 Kc5 35. Kf7 g6 $1 36. Kg7 Kxc4 37. Kxh7 b5 38. axb5 Kxb5 39. Kxg6 a5 40. Kf5 a4 41. g6 a3 42. g7 a2 43. g8=Q a1=Q {Winning according to Stockfish10, but, with the Wh Pawn so far back, Nalimov tablebases confirm this is still a draw!}) 32... a6 $11 33. c5 bxc5 34. bxc5 a5 35. Kf5 Kd7 36. Ke5 Ke7 37. Kf5 Kd7 38. Ke5 Ke7 1/2-1/2 [Event "Dyfed League:Aberystwyth-SteyntonB"] [Site "?"] [Date "2019.02.04"] [Round "?"] [White "Cook, James"] [Black "Miller, John S"] [Result "0-1"] [ECO "C01"] [WhiteElo "1496"] [BlackElo "1565"] [Annotator "kemen"] [PlyCount "90"] [EventDate "2019.02.05"] 1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4 Nf6 5. Bg5 Be7 6. Nc3 c6 7. cxd5 (7. Nf3 { main}) 7... Nxd5 8. Nxd5 $146 (8. Bxe7 Qxe7+ 9. Qe2 (9. Be2 {Both played-though Wh does badly in these lines})) (8. Bd2 $11 {Cloud Engines}) 8... Bxg5 9. Nc3 (9. Ne3 {Fritz15 & Komodo12}) 9... O-O 10. Nf3 Bg4 11. Be2 Re8 ( 11... Bxf3 12. Bxf3 Re8+ {both Engines} 13. Ne2 Qa5+ 14. Kf1 Nd7 $17 {Komodo12} ) 12. Nxg5 (12. O-O $11 {both Engines}) 12... Qxg5 (12... Bxe2 13. Nxe2 Qxg5 14. O-O Na6 $15 {Komodo121}) 13. O-O Bxe2 14. Nxe2 {Fritz15} (14. Re1 Nd7 15. Rxe2 $15 {Komodo12}) 14... Nd7 $15 (14... Na6) 15. Re1 (15. Nc3 Rad8 16. Qb3 Nb6 $15) 15... Nf6 16. Qb3 Rab8 (16... Qd2 17. Kf1 Re7 $15 {both Engines}) 17. Rad1 (17. Ng3 $11 {both Engines}) 17... Nd5 18. Qg3 (18. Nc3 $11 {both Engines} Rxe1+ (18... Nf4 {Komodo12} 19. g3 Qh5 20. gxf4 Qg4+ 21. Kf1 Qh3+ 22. Kg1 Qg4+ $11) 19. Rxe1 Qd2 20. Rd1 Re8 21. h3 Re1+ 22. Rxe1 Qxe1+ 23. Kh2 Qxf2 24. Qxb7 Qf4+) 18... Qe7 $15 19. Kf1 Qd7 (19... Qb4) 20. Nf4 Rxe1+ (20... Nxf4 21. Qxf4 Qd5 $15 {Komodo12}) 21. Rxe1 Nxf4 22. Qxf4 Rd8 23. Rd1 $6 {going behind the pawn means that Bl will be able to win the d pawn because of the pin against it } (23. h3 h6 24. Kg1 $11 {Komodo12} Qxd4 $2 25. Re8+ Kh7 26. Qf5+ g6 27. Qxf7+ Qg7 28. Qxg7+ Kxg7 29. Rxd8 $18) (23. b3 f6 24. Re4 $11 {Fritz15} c5 {Komodo12} 25. dxc5 Qb5+ 26. Rc4 Rd1+ 27. Ke2 Qd7 28. Qe3 Rd5 29. Re4 Qb5+ 30. Ke1 Qxc5 $11) 23... Qd5 (23... Qe6 {Komodo12} 24. b3 Re8 25. Qf3 g6 $15) 24. Re1 Kf8 ( 24... Qxa2 $17 {both Engines}) 25. b3 (25. Qc7 Qd7 26. Qe5 $11 {Fritz13}) (25. Qh4 Re8 26. Rxe8+ Kxe8 27. Qg4 Qc4+ 28. Qe2+ Qxe2+ 29. Kxe2 $11 {Komodo12}) 25... Qxd4 $17 26. Qc7 Qd7 27. Qe5 Qd6 28. Qe3 {(draw?)} Qd3+ 29. Qxd3 Rxd3 $17 30. Ke2 Rd5 (30... Rd7 {both Engines- to let the Bl K out}) 31. Kf3 Rd2 32. a3 Rd3+ 33. Ke2 Rxb3 $19 34. Ra1 Ke7 35. a4 b6 36. Ra2 c5 37. Kd2 Rb4 38. Kc3 Kd6 39. Rd2+ Kc7 40. Ra2 Kc6 41. f3 Kb7 42. g4 (42. Re2 Ka6 43. Re7 Rf4 44. Rc7 h5 45. Kb3 h4 46. h3 g5 {Komodo12- & Wh is running out of moves}) 42... Rf4 43. a5 Rxf3+ 44. Kc4 Rf4+ 45. Kb5 a6# (45... Rb4#) 0-1

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