Catching Up 3

Here is the third instalment of my catching-up reports on the autumn's matches.

Cardigan 2-2 Aberystwyth A. Cardigan, 28 November.

Howard Williams ½-½ Rudy van Kemenade

Iolo Jones 1-0 Adam Watkin-Jones

Tony Haigh ½-½ Robert Wright

Howard Leah 0-1 Adam Robinson

A good result for the A team against the League champions.

[Event "Dyfed League:Cardigan-AberystwythA"] [Site "?"] [Date "2016.11.28"] [Round "?"] [White "Van Kemenade, R."] [Black "Williams, AH."] [Result "1/2-1/2"] [ECO "B20"] [WhiteElo "1988"] [BlackElo "2364"] [Annotator "Rudy"] [PlyCount "81"] [SourceDate "2016.11.29"] 1. f4 g6 {after consideration; Howard was expecting a Sicilian after the last encounter where Wh had an overwhelming position from the opening , but still went onto lose.Dyfed League, feb 2016,0-1} (1... d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 c5 5. d3 Nc6 6. O-O Nf6 7. c3 O-O 8. Qe1 b6 {was contested twice before, Dyfed League 2009, 0-1 & Wales Ch 2014,0-1}) 2. Nf3 c5 3. g3 Bg7 4. Bg2 Nc6 5. d3 e6 6. e4 Nge7 {& its become a Sicilian after all, of a closed variety ( though usually Wh has a N on c3 from move 2} 7. O-O O-O 8. c3 d6 (8... d5 {is a major alternative}) 9. Be3 b6 (9... b5 {also played, but much looser than the text}) (9... Rb8 10. d4 b6 11. Bf2 a5 12. Re1 Ba6 13. a3 Qd7 14. Nbd2 { McHane-Khalifman, Drammen Smartfish Masters 2005,1-0 ( featured in Lakdawala -Bird's Opening 2015:371-9 ( which had been part of Wh's advance preparation)}) 10. d4 {opening the game is preferred by Lakdawala} (10. Bf2 {main; keeping the position closed to prevent Bl counterplay on the Q side. when a game Movsesian-Belezky, German League 2008,1-0 went} Qd7 11. Re1 Ba6 12. Na3 Rac8 13. Qd2 Rc7 14. Rad1 Rd8 15. Nc2 Qc8 16. g4 {analysed in Lakdawala 2015:363-371 }) 10... Ba6 (10... cxd4 11. cxd4 (11. Nxd4 {also played})) 11. Re1 Qc7 (11... Rc8 12. Na3 {main}) 12. Na3 Rac8 (12... Rfd8 13. Bf2 d5 (13... b5 14. d5 exd5 15. exd5 b4 16. dxc6 (16. Nc2 bxc3 17. dxc6 cxb2 18. Rb1 Rab8 $11 {Komodo10}) 16... bxa3 17. Qa4 axb2 18. Rab1 Qxc6 19. Qa3 Bd3 20. Rxb2 Qc7 { Kristiansen-Fuglsang, DEN ch tm 1995,draw agreed}) 14. exd5 Nxd5 15. Qa4 Qb7 ( 15... Bb7) 16. dxc5 b5 17. Qc2 b4 18. Nb1 bxc3 19. bxc3 Rab8 20. Nd4 $11 { Winnemoeller-Klanert, Ruhrgebiet VL1 1997,1-0}) 13. Bf2 (13. Qa4 Bb7 14. Nb5 Qb8 {considered} 15. e5 cxd4 16. cxd4 Nf5 17. g4 Nxe3 18. Rxe3 dxe5 19. dxe5 Ne7 20. Nd6 $11 {Laurynaitis-Linauskas, LTU ch 1999,0-1}) (13. Rc1 Rfe8 14. b4 Nb8 15. Qa4 Red8 16. bxc5 bxc5 17. dxc5 dxc5 18. c4 $14 {Hasangatin-Kniest, Pardubice op 2005,1-0}) (13. Qd2 Rfd8 14. Rac1 d5 15. e5 cxd4 16. cxd4 Qb8 17. b4 Bb7 18. g4 $14 {Bachorczyk-Aliavdin, Chorzow op 2007,1-0}) 13... Rfd8 (13... cxd4 14. cxd4 Qb7 15. Qd2 Na5 16. b3 Rc7 17. f5 exf5 18. exf5 Qb8 19. fxg6 hxg6 20. Ng5 $14 {Brandner-Scheffknecht, AUT ch, Hartberg 2004,1/2-1/2}) 14. Rc1 ( 14. d5 exd5 15. exd5 Na5 16. Qd2 $14 {Komodo10}) 14... Qd7 15. Qd2 (15. Qa4 Bb7 (15... Nb8 $11 {Komodo10}) 16. Rcd1 (16. dxc5 bxc5 17. Rcd1 Nd4 18. Qxd7 Nxf3+ 19. Bxf3 Rxd7 20. Nc4 Rcd8 21. Na5 Ba8 22. Kg2 d5 $11 {Komodo10}) 16... Nxd4 $17 {pm analysis} 17. Qxa7 Ra8 18. Qxb6 Ra6 19. Qxd8+ Qxd8 20. cxd4 cxd4 21. Nxd4 Ra4 $17 {Komodo10}) (15. d5 exd5 16. exd5 Nb8 17. Nd2 $14 {Komodo10}) 15... Na5 16. b3 (16. d5 $14) 16... cxd4 17. cxd4 (17. Bxd4 {considered, pm analysis} e5 18. Bf2 exf4 19. gxf4 d5 20. e5 Nf5 21. Nc2 Nc6 22. Ng5 $16 { Komodo10} d4 23. c4 Na5 24. Nb4 Bb7 25. Nd5 $16) 17... Rxc1 18. Rxc1 Rc8 $11 19. h3 (19. g4 {considered & in pm analysis lead to complexities} Rxc1+ { Komodo10 just swaps off} 20. Qxc1 Bb7 21. Ne1 Nac6 22. Nac2 f5 23. gxf5 gxf5 24. exf5 Nxf5 25. d5 exd5 26. Bxd5+ Kh8 $11) 19... Bb7 20. Ne1 (20. Rxc8+ Qxc8 21. e5 (21. Nb5 Qc6 22. Nxa7 Qxe4 23. Ne1 Qb1 24. Qc2 Qa1 25. Nb5 Bc6 26. Nxd6 Bxd4 27. Kh2 Bxg2 28. Qc7 Bxf2 29. Qxe7 Qg7 30. Nxg2 Bc5 $11 {Komodo10}) 21... Ba6 $11 {Komodo10}) 20... f5 21. b4 (21. d5 Rxc1 22. Qxc1 exd5 23. exf5 Nxf5 24. Nac2 d4 25. g4 Bxg2 26. Kxg2 Qc6+ 27. Kh2 Ne7 28. Qd2 Qd5 29. Nxd4 Nac6 30. Nec2 Kf7 $11 {Komodo10}) 21... Rxc1 22. Qxc1 Nac6 {initially Bl thought this would give him an advantage} 23. exf5 {most accurate; Komodo10} (23. d5 exd5 24. exf5 Nxb4 25. fxg6 hxg6 26. Nb1 Ba6 27. Qa3 Nec6 28. Qa4 Bc4 29. Na3 Bxa2 30. Nac2 b5 31. Qxb5 Bc4 32. Bxd5+ Bxd5 33. Nxb4 Be4 $11 34. Qc4+ d5 35. Qxc6 Qxh3 36. Bxa7 Qxg3+ 37. Kf1 Qh3+ 38. Ke2 Qg4+ 39. Kd2 Qxf4+ 40. Be3 Qh2+ 41. Kd1 Qh5+ 42. Kd2 Qh2+ $11 {repetition; Komodo10}) 23... Nxf5 (23... gxf5 24. Qc4 Nd8 25. Bxb7 Qxb7 26. Nb5 (26. b5 $11) 26... a6 27. Nc3 (27. Nxd6 Qd7 $17 { traps N}) 27... b5 28. Qd3 Nd5 29. Nxd5 Qxd5 30. a4 Kf8 $15 {Komodo10}) (23... Nxd4 24. fxe6 Nxe6 25. Qc4 Bxg2 26. Kxg2 Qb7+ 27. Nf3 d5 28. Qd3 d4 29. Nb5 Qd5 30. Nxa7 Qxa2 31. Qe4 Nf5 32. Kg1 Ne3 33. Bxe3 dxe3 34. Qxe3 Nxf4 35. gxf4 Qxa7 36. Qe6+ Qf7 37. Qxb6 Qxf4 38. Kg2 Bf8 39. b5 Bd6 40. Qf2 g5 $11 {Komodo10}) 24. d5 Ncd4 (24... Nxb4 25. dxe6 Qc8 26. Qxc8+ Bxc8 27. Nb5 Bxe6 28. a3 Nd5 29. Nxa7 Nfe3 30. Bf3 Kf7 (30... Bxh3 31. Nc2 Nxc2 32. Bxd5+ Kf8 33. Nb5 Bd7 34. Be4 Bxb5 35. Bxc2 Bc3 36. Bxb6 d5 $11 {Komodo10})) 25. dxe6 (25. Qc4 {Komodo10} Qc8 26. dxe6 Qxc4 27. Nxc4 d5 28. Ne3 Nxe3 29. Bxe3 Nxe6 30. Nc2 Kf7 31. Kf2 $11) 25... Qxe6 (25... Ne2+ 26. Kh2 Qxe6 27. Qc4 Qxc4 28. Nxc4 Bxg2 29. Kxg2 d5 30. Ne5 (30. Ne3 Nexg3 $15) 30... Bxe5 31. fxe5 Nfd4 32. Bxd4 Nxd4 33. Nd3 Kf7 34. Nf4 Nc2 35. b5 Na3 36. Nxd5 Ke6 37. Nc7+ Kxe5 $15) 26. Qc4 Bxg2 (26... d5 27. Qc7 Qe7 $11) (26... Qxc4 27. Nxc4 $15 {as in note above}) 27. Qxe6+ Nxe6 28. Kxg2 $11 d5 29. Nac2 (29. Nb5 a6 30. Na7 {Komodo10} b5 (30... Bd4 31. Nc8 b5 32. Bxd4 Nexd4 33. Kf2 Nc6 34. Nd3 Kf7 35. Nb6 Ke6 36. Nc5+ Kd6 37. Nxa6 d4 38. a4 bxa4 39. Nxa4 Na7 40. N6c5 Kd5 41. Nb2 $14 {Komodo10})) 29... Kf7 30. Nd3 (30. a4) 30... Ke7 31. g4 (31. Kf3 Nd6 32. Nc1 Kd7 33. Ne2 Ne4 34. Be3 Kc6 35. a4 Kd6 36. Ncd4 Nxd4+ 37. Bxd4 Bxd4 38. Nxd4 a6 $11 {Komodo10}) 31... Nfd4 32. Ne3 Kd6 33. Bg3 Kc6 34. a4 b5 35. f5 (35. a5 Ne2 36. f5 Nxg3 37. Kxg3 gxf5 38. gxf5 Nd4 39. Kg4 Ne2 40. Kg5 Nc3 $11 {Komodo10}) (35. axb5+ Nxb5 36. f5 gxf5 37. gxf5 Nf8 38. Ng4 Nd7 39. Nge5+ Bxe5 40. Nxe5+ Nxe5 41. Bxe5 Nd6 42. f6 Kd7 43. Kf3 Nc4 44. Bc3 Ke6 45. Kf4 $11 {Komodo10}) 35... gxf5 (35... bxa4 { considered} 36. fxe6 Nxe6 37. Nc2 Nd4 38. b5+ (38. Na3 Nb5 39. Be5 Nxa3 40. Bxg7 Nc2 41. Kf3 a3 42. Nc1 (42. Kf4 a2 43. Nc1 a1=Q 44. Bxa1 Nxa1 45. Kg5 Nc2 46. Kh6 Nxb4 47. Kxh7 d4 48. Kxg6 d3 49. Nxd3 Nxd3 50. h4 a5 51. h5 Ne5+ 52. Kf5 a4 $17) 42... Kb5 43. Na2 Kc4 44. Ke2 d4 45. Kd2 Ne3 46. Nc1 Nd5 47. Ne2 Nf4 48. Nxd4 Nxh3 49. Nf3 Kxb4 50. Kc2 h5 51. gxh5 gxh5 52. Bf8+ Ka4 53. Bd6 $11 {Komodo10})) 36. gxf5 Ng5 37. axb5+ (37. Ne5+ {considered} Bxe5 38. Bxe5 Ngf3 39. axb5+ Kxb5 40. Bxd4 Nxd4 41. f6 Ne6 42. Nxd5 Kc4 43. Ne7 Kxb4 44. Nc6+ Kc5 45. Nxa7 Kd5 46. Kg3 Ke5 47. f7 Kf6 $11 {Komodo10}) (37. Be5 $2 {considered } Bxe5 38. Nxe5+ Kd6 39. Nd3 bxa4 $19) (37. a5 Ne4 38. Bb8 a6 $11 {considered; neither K can cross over the barricade of the Ns}) 37... Kxb5 (37... Nxb5 $11) 38. h4 {proves to a bit of weakness later} (38. Bh4 h6 $11 (38... Bh6 $11)) ( 38. Nf4 Kxb4 {looked too dangerous} 39. Nexd5+ Kc5 40. f6 Bf8 41. h4 Nf7 42. Ne7 a5 43. Bf2 Kc4 44. Bxd4 Kxd4 45. Ne6+ Kd3 46. Nxf8 a4 47. Nd5 a3 48. Nb4+ Kc3 49. Na2+ Kb2 50. Nb4 Kb3 51. Nd3 Kc2 52. Nb4+ Kb3 $11 {Komodo10}) (38. Bd6 Ne4 39. Bf4 Bh8 40. Bc7 {neither K can approach, the Ns are all on their best squares, so the Bs engage in a farewell dance}) 38... Nf7 39. Kh3 {hoping to provoke h5 when Nf4 has added point, but not the best} (39. Bf4 Bh8 40. Kf2 h5 41. Bg5 Nd6 42. Nxd5 Kc4 43. N3f4 N4xf5 44. Ne3+ Nxe3 45. Kxe3 Kxb4 46. Nxh5 $11 a5 47. Be7 Be5 48. Kd3 Kb3 49. Nf6 a4 50. Ne4 Nxe4 51. Kxe4 Bc3 52. h5 $11 {Komodo10}) (39. Nf4 Nh6 40. f6 Bxf6 41. Nfxd5 Bd8 $15 42. Bf2 Nf7 43. Kg3 Ne5 44. Kf4 Nd3+ 45. Ke4 Nxf2+ 46. Kxd4 Bxh4 $17) 39... Nh6 40. Nxd5 (40. f6 Bxf6 41. Nxd5 Bg7 42. Be5 Nhf5 43. Bxg7 Nxg7 44. Ne5 h5 45. Kg3 Ngf5+ 46. Kf4 Nxh4 47. Kg5 Nhf3+ 48. Nxf3 Nxf3+ 49. Kxh5 Kc4 50. Ne7 Nd4 51. Kg4 Kxb4 52. Kf4 { drawn, Nalimov Tablebases}) 40... Nhxf5 41. Be5 {(draw?)} (41. Be5 Kc4 42. Bxg7 Nxg7 43. N5f4 h5 44. Kg2 Nc6 45. Kf3 Nxb4 46. Ne5+ Kd4 47. Nd7 a5 48. Ne2+ Kd5 49. Nb6+ Kc5 50. Na4+ Kc4 51. Ke4 $19 {a very difficult endgame- probably Wh can give up both Ns for the pawns} Nc6 52. Nf4 Kb4 53. Nb2 Kc3 54. Na4+ Kb3 55. Nc5+ Kb4 56. Nfd3+ Kc3 57. Na4+ {doen't look as if Bl is making progress}) 1/2-1/2 [Event "Dyfed League:Cardigan-AberystwythA"] [Site "?"] [Date "2016.11.28"] [Round "?"] [White "Jones, IC."] [Black "Watkin-Jones, A."] [Result "1-0"] [ECO "D37"] [WhiteElo "2226"] [BlackElo "1987"] [Annotator "Rudy"] [PlyCount "83"] [EventDate "2016.??.??"] [SourceDate "2016.11.29"] 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Be7 5. e3 (5. Bg5 {Orthodox Queen's Gambit, ; at least gets the B out from behind the pawn chain}) 5... O-O 6. Bd3 dxc4 7. Bxc4 a6 8. a4 c5 {transposed to a Queens Gambit Accepted position , except that Wh has lost a tempo by moving his KB twice.} 9. O-O Nc6 10. h3 (10. dxc5 { main}) (10. b3) 10... b6 (10... Qc7 {alternative}) 11. dxc5 Qxd1 (11... Bxc5 $15 {Komodo10, 4 draws; 2 GM games}) 12. Rxd1 Bxc5 13. e4 Bb7 (13... Na5 { Cloud Engines} 14. Bd3 Nb3 15. Rb1 Nxc1 16. Rbxc1 Bb7 17. e5 Bxf3 18. gxf3 Nh5 19. Bf1 Nf4 20. Ne4 $11 {De la Fuente Gonzalez-Cortes Jurado, Madrid ch 2005,1/ 2-1/2}) (13... e5 14. Bg5 Bb7 15. Bxf6 gxf6 16. Nd5 Kg7 17. Nh4 Nd4 $11 { Maidana Guerra-Morrison, IECG email 2001, 1/2-1/2}) 14. e5 Na5 15. Be2 (15. Ba2 Ne4 16. Nxe4 Bxe4 17. Be3 Nc6 (17... Bxe3 18. fxe3 Nc6 19. Rd6 Bxf3 20. gxf3 Nxe5 21. f4 Ng6 22. Rxb6 $11 {Komodo10}) 18. Bxc5 bxc5 19. Nd2 Bc2 20. Rdc1 Nd4 21. Bc4 $11 {Zhou-Lysyj. CHN ch tm 2015,1/2-1/2}) (15. Bxa6 {Cloud Engines} Bxa6 {Komodo10 & Stockfish7} (15... Rxa6 {Stockfish 101116}) 16. exf6 gxf6 $11) 15... Nb3 $15 {Fritz13 & Komodo10} 16. Rb1 Ne4 17. Be3 Bxe3 18. fxe3 Rfd8 19. Bd3 (19. Nd4 Nbc5 $15 {both Engines}) 19... Nec5 (19... Nxc3 20. bxc3 Nc5 21. Bc2 Rxd1+ 22. Bxd1 Bc6 23. Rxb6 Bxa4 24. Bxa4 Nxa4 25. Rb3 Nc5 $17 {both Engines}) 20. Bc2 $2 (20. Be2 Kf8 $15 {Komodo10} (20... Bc6 $15 {Fritz13})) 20... Bxf3 21. gxf3 Nd2 $19 22. Ra1 Nxf3+ 23. Kg2 Nxe5 24. b4 Ncd7 (24... Ncd3 {both Engines} 25. Rab1 Rac8 26. Bxd3 Rxd3 27. Rxd3 Nxd3 28. Rb3 Ne5 29. Ne4 h6 $19) 25. Be4 (25. Ne4 $5) 25... Rac8 (25... Rab8) 26. Ne2 Rc7 (26... a5 27. bxa5 bxa5 $19 {both Engines}) (26... Rc4 27. Rd4 f5 28. Bf3 Rc2 29. Kg3 Nxf3 30. Kxf3 Ne5+ 31. Kf4 Ng6+ 32. Kg3 Rxd4 33. Nxd4 Rc3 34. Kf2 Kf7 $19 {Komodo10} ) 27. Rd4 Rdc8 28. Rad1 f5 (28... g6 {Komodo10}) (28... g5 {Fritz13}) 29. Bb1 Kf7 (29... Nf6 {Fritz13}) (29... Nf8 {Komodo10}) 30. Rd6 (30. e4 {both Engines} g6) 30... Ke7 31. Nd4 (31. Ba2 Rc2 32. R6d2 Rxd2 33. Rxd2 Nc4 {both Engines}) ( 31. Nf4 {expected by Bl} Rc6 32. Rxc6 Rxc6 $19) 31... Nf8 (31... Kxd6 $2 32. Nxf5+ Kc6 33. Be4#) 32. Nxf5+ {Wh is forced into some kind sacrifice to stay afloat since the R is now threatened; though the one chosen is not the best available.} (32. Rxb6 $2 Nc4 {picks up a R}) (32. Nxe6 Nxe6 33. Bxf5 Rc6 34. Rxc6 Rxc6 35. Bxh7 {picks up an extra pawn, though Bl is still winning}) 32... exf5 33. Bxf5 Rb8 (33... Nc4 $1 34. R6d3 Nb2 35. Bxc8 Rxc8 36. Rd6 Nxd1 37. Rxd1 Rc4 38. Rb1 Ne6 $19 {Wh has nothing for the piece}) 34. R6d5 Nc4 35. Kf3 g6 36. Be4 Nd7 (36... Nb2 37. Ra1 Rc4 38. Rd4 Rxd4 39. exd4 Ne6 $19 {Komodo10}) 37. Ke2 Nf6 38. R5d4 Nxe4 (38... Nb2 {both Engines} 39. Ra1 Rd8 40. Rxd8 Kxd8 41. Ba8 Ke7 {Blis winning comfortably}) 39. Rxe4+ Kf7 40. b5 axb5 (40... a5 { keep pawns on, swap pieces if ahead}) 41. axb5 Re8 $2 {but not this way} (41... Ra8 $19) (41... Kg7 $19) (41... Rbc8 42. Kf3 Rc5 43. Rd7+ Kg8 44. Rdd4 Ne5+ 45. Kg3 Rxb5 $19 {Komodo10}) 42. Rf1+ $18 1-0 [Event "DyfedLeague:Cardigan-AberystwythA"] [Site "?"] [Date "2016.11.28"] [Round "?"] [White "Wright, Robert"] [Black "Haig, A."] [Result "1/2-1/2"] [ECO "B02"] [WhiteElo "1906"] [BlackElo "1913"] [Annotator "Rudy"] [PlyCount "102"] [SourceDate "2016.11.30"] 1. e4 Nf6 2. e5 Nd5 3. c4 (3. Nf3 c5 4. b3 g6 5. Bb2 Bg7 6. c4 Nc7 7. Nc3 { Wright-Haigh, Dyfed Closed 2015,1/2-1/2}) 3... Nb6 4. Nc3 {main} (4. d4) (4. c5 ) 4... d5 {unusual in an Alekhine, where the e5 pawn needs challenging} (4... d6 {main}) 5. cxd5 (5. c5 {Cloud Engines} Nc4 (5... d4 6. cxb6 dxc3 7. bxc7 cxd2+ 8. Bxd2 Qxc7 9. Nf3 $14 {Cloud Engines}) 6. d4 c6 7. Qc2 g6 8. b3 Bf5 9. Bd3 Bxd3 10. Qxd3 Na5 11. Nge2 $16 {Kosek-Tejcek, Karlovy Vary 2011,1-0}) 5... Nxd5 6. Bc4 (6. d4 {33 games, 75% Wh}) (6. Nf3 {3 -0}) 6... Nxc3 (6... e6 7. Nge2 Bc5 8. O-O O-O 9. d4 Be7 10. Bd3 $14 {Haider-Bleck, Niederbayern ch 1999, 1-0}) 7. Qf3 e6 8. dxc3 $14 Nc6 9. Bf4 (9. Qe4 $16 {Komodo10, lets the N go to f3 & B maybe elsewhere}) 9... g6 (9... g5 {Komodo10}) 10. Rd1 Qe7 11. Bb5 (11. Qe3 $16) (11. h4 $16) 11... Bd7 12. Nh3 h6 $11 13. Bg3 O-O-O 14. Qf6 $5 (14. O-O g5 15. Qe2 a6 16. Bc4 h5 17. f4 $11 {Komodo10}) 14... Qxf6 15. exf6 { is this pawn strong or a liability?} Ne5 (15... Nb8 16. Bd3 Ba4 17. b3 Bc6 18. f3 Bd6 $15 {Komodo10}) 16. Be2 (16. Bxe5 Bxb5 17. Rxd8+ Kxd8 18. f3 Bd6 19. Bg3 $11 {Komodo10}) 16... Bd6 (16... Bc6) 17. O-O (17. f4) 17... Bc6 18. f3 Bc5+ 19. Nf2 Nd7 20. b4 Bxf2+ 21. Kxf2 (21. Bxf2 Ba4 22. Rd4 a6 23. c4 Ne5 $11) 21... Ba4 22. Rd4 Nb6 23. Rc1 Rd5 (23... a6 $11) 24. Bd1 (24. Rxd5 Nxd5 25. Be5 Rd8 26. h4 $14 {Komodo10}) 24... Bxd1 25. Rcxd1 Rhd8 26. Rxd5 Rxd5 27. Rxd5 exd5 $15 {the K gets access to e6} (27... Nxd5 $11) 28. Bf4 h5 (28... Na4 29. Bxh6 Nxc3 30. a3 Kd7 31. Ke3 Ke6 32. h4 Nb5 33. a4 Na3 34. Kd3 c6 $15 {Komodo10 }) 29. g4 (29. Ke3 c6 30. Be5 Na4 31. Bd4 b6 32. b5 c5 33. Be5 Nb2 $17 { Komodo10; the B is restricted by its own pawns, esprcially thre one on f6}) 29... Kd7 30. gxh5 gxh5 31. Kg3 c6 (31... Ke6 32. Kh4 (32. Bxc7 Na4 $19 { Bl harvests the Q side pawns}) 32... Kf5 (32... Kxf6 33. Bxc7 $11 {the B can gain time on the K at f6}) 33. Be3 Na4 34. Kxh5 Nxc3 $15) 32. Kh4 $16 Ke6 33. Bg5 {the f6 pawn is irrelevant- the B is needed to protect the Q side} (33. Kxh5 $1 $16 {and sooner or later the outside passed h pawn will force a Bl piece away from the Q side, allowing the Wh K entry there} {eg} Na4 34. Bd2 Nb2 35. h4 Nc4 36. Bg5 a5 37. bxa5 c5 38. Kg4 Ne5+ 39. Kf4 Nd3+ 40. Ke3 Ne5 41. Ke2 Kf5 42. Be3 Nd7 43. h5 Kxf6 44. Kd1 {and the Wh K enters via b5 ( Komodo10)}) 33... Na4 34. Kxh5 (34. Bd2 Nb2 $11 {Wh has lost a tempo, so Komodo10 considers it drawn, but the h pawn must still favour Wh in practical terms}) 34... Kf5 (34... Nxc3 $17) 35. Kh6 (35. Bd2 $16 {Komodo10 & Rudy}) 35... Nxc3 36. Bd2 (36. h4 {Komodo10} d4 37. Kg7 Nd5 38. Kxf7 d3 39. Bd2 Nxf6 40. Ke7 Nh5 41. Kd6 Ng3 42. Kc7 Nf1 43. Bc1 b6 44. Kxc6 d2 45. Bxd2 Nxd2 46. a4 Nc4 47. Kb7 a5 48. bxa5 bxa5 49. Ka6 Kg6 50. f4 {if Bl loses the a pawn & have to give up his N for the Wh a pawn, then Wh wins as the 2 K side pawns can protect against the K- each time one is attacked, the other advances, so the K can't take its colleague} Kh5 51. f5 Kxh4 52. f6 Nd6 (52... Ne5 53. Kxa5 {loses, Nalimov tablebases}) 53. Kxa5 Kg5 54. Kb6 Kxf6 55. a5 Nc4+ $11) 36... d4 $17 37. Kg7 Nd5 38. Kxf7 d3 $11 {loses control over the Bl squares} (38... Nxf6 $17 39. Ke7 Ke5 40. h4 (40. Kd8 b6 41. Kc7 Kd5 42. Kb7 c5 43. bxc5 bxc5 $19 { as c3 is coming}) 40... Nh5 41. f4+ Ke4 42. f5 Kxf5 43. Kd7 Ke4 44. Kc7 Kd3 45. Bg5 Kc4 46. Kxb7 Kxb4 47. Kxc6 d3 48. Kb7 a5 {still runs out a draw in the long run, Komodo10 nudged}) 39. h4 Nxf6 40. Ke7 Nd5+ 41. Kd6 (41. Kd7 {could be tried, Wh is ensured of a draw if he can get rid of all the BL Q side pawns, & may even have some winning chances ( The Bl K has to catch the h pawn & the N needs to win the Bf or d pawn.)} Nb6+ 42. Kc7 Nc4 43. Bc1 b6 44. Kxc6 d2 45. Bxd2 Nxd2 46. Kb7 b5 47. Ka6 Nb1 48. Kxb5 Nc3+ 49. Ka6 Nxa2 50. b5 Nc3 51. Kxa7 Nxb5+ $11) 41... Nb6 (41... Nf4 42. Kc7 b6 43. Kxc6 Ng6 44. h5 Ne5+ 45. Kb7 Nc4 46. Bc1 a5 47. b5 $16 (47. bxa5 bxa5 48. Ka6 d2 49. Bxd2 Nxd2 50. Kxa5 Nxf3 $11 ) 47... a4 48. Kc6 a3 49. Kb7 Kf6 50. Kc6 Kf5 51. f4 (51. Kb7 {repeats}) 51... Na5+ 52. Kxb6 Nb3 53. Be3 Ke4 54. h6 Kxe3 55. h7 d2 56. h8=Q d1=Q 57. Qe5+ Kf2 58. f5 Qd8+ {hair-raising position for humans to judge or play; simple draw for Engines}) 42. Kc5 $14 Nd7+ (42... Kg6) 43. Kd4 Ne5 44. a4 (44. Ke3 Ng6 45. h5 Nh4 46. h6 Kg6 47. Kf4 Kh7 48. Ke4 Kg6 49. Be3 b6 50. Kxd3 Nxf3 51. Ke4 Ne1 52. Bd2 Nc2 {Bl has many more chances of going wrong in this position than Wh, who can decide at any time to sacrifice the distant passed pawn for making use of the B on the Q side} 53. Kd3 (53. a4 Nxb4 54. Bxb4 Kxh6 55. Ke5 Kg6 56. Bd6 (56. Kd6 a5 57. Be1 b5 {eliminates the pawn})) 53... Na3 (53... Nxb4+ 54. Bxb4 Kxh6 {probably still a draw, as Wh has the wrong colour Rs pawn, & Bl'K can scurry back} 55. Kd4 Kg6 56. Ke5 c5 57. Bc3 Kf7 58. Kd6 Ke8 59. Bf6 b5 60. Kxc5 Kd7 61. Kxb5 Kc7 62. Ka6 Kb8 {destination reached, though Komodo10 still thinks Wh is winning})) 44... Nxf3+ 45. Kxd3 Nxh4 46. Be3 a6 47. Kc4 Ke6 48. Kc5 Kd7 49. Kb6 Kc8 {again just in time} 50. b5 {ensuring the draw} cxb5 51. axb5 axb5 1/2-1/2 [Event "Dyfed League:Cardigan-AberystwythA"] [Site "?"] [Date "2016.11.28"] [Round "?"] [White "Leah, H."] [Black "Robinson, Adam"] [Result "0-1"] [ECO "B85"] [WhiteElo "1523"] [BlackElo "1765"] [Annotator "Rudy"] [PlyCount "132"] [SourceDate "2016.11.30"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 (6. Bg5) (6. Be3 { more frequent}) 6... e6 (6... e5 {Najdorf's original idea}) 7. O-O Be7 8. Be3 O-O 9. f4 {its a mainline Scheveningen ( pronunciation test)} Qc7 10. Nb3 (10. Qe1 b5 11. a3 Bb7 12. Bf3 Nbd7 13. Qg3) (10. g4 d5 11. exd5 Nxd5 12. Nxd5 exd5 13. Bf3 Rd8 {more frequent ways}) 10... b5 (10... Nc6 {alternative}) 11. a3 Bb7 12. Bf3 Nbd7 13. Qe1 Nb6 (13... Rac8 14. Qg3 {main}) 14. Na5 e5 (14... Bc8) ( 14... d5) (14... Nc4) (14... Nfd7) (14... Rad8 {have alll featured with one game each- 3 draws, 3 Bl wins}) 15. Rd1 (15. Nxb7 Qxb7 16. fxe5 dxe5 17. Bxb6 Qxb6+ 18. Kh1 Rac8 19. Qe2 Qc7 20. Rad1 Bxa3 21. Nxb5 axb5 22. bxa3 Qa5 $15 { Antunovic-Bakri, Wld ch U12, Chalkidiki 2003,0-1}) 15... Nc4 16. Nxb7 (16. Nxc4 Qxc4 17. Rd3 Rac8 $11 {Komodo10}) 16... Qxb7 (16... Nxb2 $1 17. Rb1 Nc4 18. a4 Na3 19. Rb2 (19. Rb3 Nxc2 20. Qf2 Nxe3 21. Qxe3 exf4 22. Qxf4 Ra7 23. axb5 Rxb7 24. Kh1 axb5 $17 {Komodo10}) 19... Qxb7 20. axb5 axb5 21. Qe2 Qc6 22. Nxb5 Nc4 23. Rb3 Nxe3 24. Qxe3 (24. Rxe3 Rab8) 24... Qxc2 $17 {Komodo10}) 17. Bc1 (17. fxe5 dxe5 18. Bc1 Rad8 $11) 17... Rfd8 (17... exf4 $15) 18. b3 Na5 (18... Nb6 19. Rf2 $14) (18... Nxa3 19. Bxa3 b4 20. Bb2 bxc3 21. Bxc3 $14) 19. Bb2 (19. fxe5 dxe5 20. Nd5 Nc6 21. Be3 $16 {Komodo10}) 19... Nc6 20. Ne2 {a little passive} (20. Nd5 Re8 21. Qf2 $16 {Komodo10}) 20... Rac8 (20... exf4 21. Nxf4 Ne5 $11) 21. Rd2 (21. g3) 21... Qc7 22. Qf2 exf4 23. Nxf4 Ne5 24. Bxe5 $2 { the N makes the Bon f3 bad, but exchanging releases Bl's bl B , with control of those squares across the board} (24. Kh1 $11) 24... dxe5 $17 25. Nd3 Bxa3 { Bl now has a potential passed a pawn. The Bl B has plenty of entry squares, the Wh B is a big pawn} 26. Qe2 Bc5+ (26... a5) (26... Be7) 27. Kh1 (27. Nxc5 Qxc5+ {makes it good N vs bad B}) 27... Bd4 $19 28. Nb4 Qb6 29. Nd5 Nxd5 30. exd5 a5 {the d pawn is easily blockaded; the a pawn just marches on, helped by its B} (30... f5 31. g4 f4 {Komodo8 & 10}) 31. c4 bxc4 (31... a4 32. bxa4 bxc4 {Komodo10, the a pawn is lost; but just keeping the Bl a pawn is simpler to play}) 32. bxc4 a4 33. Qd3 Qc5 (33... Qb3) 34. Be2 Rb8 (34... Ra8 {preferred by Komodo10}) 35. Rb1 a3 36. Ra2 Rxb1+ 37. Qxb1 Bb2 {immuring the R} (37... Qd6 38. g3 Rb8 39. Qd3 Bc5 40. Kg2 g6 41. Qc2 Bd4 42. Qd3 Rb2 43. Rxb2 axb2 { Komodo10 is more convoluted}) 38. Rxb2 axb2 39. Qxb2 Qd6 (39... Qf2 40. g3 e4 $19 {Komodo10;but why risk things? The static pawns & B of Wh gives Bl all the time in the world to improve his position bit by bit}) 40. g3 g6 41. Kg2 f6 42. Bf3 Kg7 43. Qc3 Rc8 44. g4 Rc7 {covering all counterplay} 45. Be4 Qc5 {winning one pawn} 46. h3 (46. Bd3 Qxd5+ {followed by the advance of the centre pawns}) 46... Qxc4 47. Qxc4 {keeping Qs on is very dangerous with Wh's K exposed} Rxc4 48. Kf3 g5 {Bl has a plan} (48... f5 $1 {Komodo 8 & 10 is quicker} 49. gxf5 gxf5 50. Bb1 (50. Bxf5 Rf4+) 50... e4+ (50... Kf6) (50... Rd4)) 49. Bf5 Rd4 50. Be6 Kf8 51. Ke3 Ke7 52. Kf3 Kd6 53. Bg8 h6 54. Ke3 Rxd5 55. Bh7 Rd4 {next , force the K back} 56. Bf5 Ra4 57. Kf2 Kd5 58. Kg2 Ra3 59. Bc8 e4 {push a pawn, through , aided by the K& threatening a mating net ( Wh is still unable to control the bl squares} 60. Bb7+ Kd4 {Komodo8} (60... Ke5 61. Kf1 Kf4 {Komodo10 }) 61. Bc6 e3 (61... Kd3) 62. Kf3 Rb3 (62... Ra5) 63. Bd7 Rb2 64. Bf5 e2 (64... Rf2+ 65. Kg3 Rf1 (65... Rxf5 66. gxf5 Kd3) 66. Kg2 e2 {there is more than one way}) 65. Kf2 Kc3 66. Be4 (66. Ke1 {holds a little longer} Kd4 67. Kf2 Rb5 $1 { Komodo10} 68. Kxe2 (68. Bc2 Kc3 (68... Re5 69. Ke1 Ke3 70. Bf5 Ra5 71. Bb1 Ra1 72. h4 Rxb1#) 69. Bg6 Kd2) (68. Bg6 Re5 69. Ke1 Ke3) 68... Rxf5 69. gxf5 Ke4) 66... Kd2 0-1