[Event "Cox Trophy"]
[White "Clark, Matthew DH"]
[Black "Van Kemenade, R."]
[Site "?"]
[Round "1.1"]
[Annotator "Van Kemenade,Rudy"]
[Result "0-1"]
[Date "2024.12.12"]
[ECO "C43"]
[WhiteElo "1807"]
[BlackElo "1896"]
[PlyCount "116"]
[GameId "2122308061040671"]
[EventDate "2024.12.13"]

1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. dxe5 (5. Nxe5 Nd7 {main}) 5... Nc5 6. Be2 (6. Nc3 c6 (6... Be7 $2 7. Nxd5)) 6... Be7 7. O-O O-O 8. Be3 Ne6 (8... c6 9. c4 {main}) 9. c4 dxc4 10. Bxc4 (10. Qc2 $14 {Cloud Engines; 3-1}) 10... Nc6 (10... Nd7 $14 {3-0}) (10... Qxd1 {SF17} 11. Rxd1 Nd7 12. Nc3 Nb6 13. Bb3 Nc5 14. Bxc5 Bxc5 15. Ne4 Be7 16. Rac1 c6 17. Nd6 $14 {Plat-Kraus,CZE ch, Ostrava 2018,1/2-1/2}) 11. Nc3 Kh8 (11... Qxd1 12. Rfxd1 h6 $14 {SF17}) 12. Qxd8 (12. Qc2 Ncd4 13. Nxd4 Nxd4 14. Qe4 c5 15. Rad1 f5 (15... Bf5 16. Qxb7 $18) 16. Qd3 f4 17. Bxd4 Bf5 18. Qf3 cxd4 19. Nb5 Bc5 20. Nd6 $18 {SF17}) 12... Bxd8 (12... Rxd8 {SF17- but Bl was looking to open the f file for some counterplay}) 13. Rad1 a6 (13... h6 $14) (13... f5 {considered} 14. exf6 (14. h4 f4 15. Bc1 a6 16. a3 Rb8 17. Rfe1 b5 18. Bd5 Ne7 19. Ba2 h6 20. Ne4 Nf5 21. Bxe6 Bxe6 22. Nc5 Rb6 23. h5 $18 {SF17- but it remains complex , which was Bl's aim in trying to avoid drawish lines}) 14... Bxf6 15. Rd2 $16 {SF17}) 14. Ne4 f5 (14... h6 $14 {SF17, pm suggestion}) 15. exf6 Bxf6 (15... gxf6 16. Bh6 Ng7 17. Rfe1 Bg4 18. h3 Bxf3 19. Rd7 Be7 20. gxf3 $18 {SF17}) 16. Nxf6 Rxf6 (16... gxf6 {SF17 preferred, but then Bl is left with no counterplay}) 17. Rfe1 h6 (17... b5 18. Bd5 Bb7 19. Bd2 Nf4 20. Be4 Rb8 21. Rc1 Ng6 22. h4 h6 23. h5 Nf8 24. Nh4 $18 {SF17}) 18. a3 (18. Bd2 $1 {seen now by Bl, improves the position of Wh's worst placed piece. Wh did not wish to obstruct the d file- so had looked at b3, Bc1 & Bb2, but the blocking is only temporary} Nf8 19. Re8 b5 20. Bc3 $1 (20. Bd5 Bb7 21. Rde1 Rxe8 22. Rxe8 Na5 23. Bc3 Bxd5 24. Bxf6 Kg8 25. Bc3 Nc6 26. Ne5 Nxe5 27. Bxe5 Kf7 28. Rc8 Ne6 29. Bxc7 Bxa2 30. Ba5 $18) 20... Rf4 21. Bb3 Kh7 22. Bc2+ Kg8 23. Ne5 (23. Bb3+ {gives Wh a draw}) 23... Bb7 24. Rxa8 Bxa8 25. Bb3+ Kh7 26. Nxc6 Bxc6 27. Rd8 Be4 28. Be5 Rf5 29. Bxc7 $18 {SF17- the two Bs and R are too powerful}) (18. h3 {considered by Wh might provide a potential target for Bl's B at some point}) 18... Nf8 19. Nd4 {Bl thought this gave him chances, but it is SF17 top line} Ne5 20. Ba2 Ng4 {not one of the top3 SF17 lines} (20... c5 21. Bd5 $1 Ng4 22. Nb3 Nxe3 23. Rxe3 Be6 24. Nxc5 Bxd5 25. Rxd5 Rb6 26. Nd3 $18 {SF17}) 21. Nf3 {SF17 prefers 3 surprising replies with its superior calculating ability} (21. Bc1 c5 (21... Nxf2 22. Rd2 {The advanced Bl N has no retreat}) 22. Nb3 Be6 23. f3 Bxb3 24. Bxb3 Rb6 25. Bc4 Nf6 26. b3 $18 {SF17- the Wh pieces are all far better placed}) (21. Bd2 Nxf2 22. Ra1 Bg4 23. Bc3 Nd3 24. Re3 Nf4 25. h3 Bh5 26. g4 Bf7 27. Nf5 Bxa2 28. Bxf6 gxf6 29. Rxa2 $18 {SF17}) (21. Rc1 Nxe3 22. Rxe3 Bd7 23. Rxc7 Rd6 24. Nf3 Rb6 25. Bd5 (25. b4 a5 26. b5 Bxb5 27. h3 Bd7 28. Ne5 Be6 29. Ng6+ Nxg6 30. Bxe6 Re8 31. Bd5 Rxe3 32. fxe3 Ne5 33. Bxb7 $18) 25... Rxb2 26. h4 Rb5 27. Bb3 (27. Bxb7 Ra7) 27... Rb6 28. Ne5 Be6 29. Bc2 $18 {SF17}) 21... Nxe3 (21... Be6 22. Bb1 Nxe3 23. Rxe3 Bf5 24. Bxf5 Rxf5 25. Re7 Rb5 26. Rd2 Rc5 27. h4 $14 {SF17}) 22. Rxe3 (22. Rd8 Nxg2 23. Ree8 Bd7 24. Rxa8 Bxe8 25. Ne5 Nh4 26. Rxe8 Kh7 27. Bb1+ Nhg6 28. Rc8 c5 29. Rxc5 Kh8 $14 {SF17}) 22... Bg4 $11 23. h3 {The Engine still regards this as level with its superb defensive skills- but it is a major concession, wrecking Wh's pawn majority and leaving the f4 square for both Bl's KN & K since the B can't cover it. So, in human terms dubious} (23. Rdd3 {expected} Be6 {SF17} (23... Ng6 {planned} 24. Ne5 Nxe5 25. Rxe5 Bf5 26. Rc3 c6 27. Re7 b6 28. h4 $14 {SF17}) (23... Bxf3 24. Rxf3 Rxf3 25. Rxf3 Rd8 {Wh was worried about this threat but} 26. Kf1 $16)) 23... Bxf3 24. Rxf3 Rxf3 25. gxf3 Re8 26. Kf1 Nh7 {Bl picked up the N to put it of g6to look at f4 and answer Rd7 with Re7, which had been the plan then realised about the skewer Bf7.Fortunately the N had another square to go to} (26... g6 {pm analysis} 27. Rd3 {SF17} Kg7 (27... Re7 28. Re3 Rd7 29. Re8 Kg7 30. h4 Rd2 31. Re7+ Kh8 32. Rxc7 Rxb2 33. Bd5 Rb5 (33... b5 34. Rc8 Kg7 35. Rc7+ Kh8 36. Rc8 $11 {repetition} (36. Rf7 Nh7 37. Be4 $16))) 28. Re3 Rxe3 29. fxe3 $11) (26... g5 27. Rd3 Re7 28. Re3 Rd7 29. f4 $1 gxf4 30. Re8 Kg7 31. Ke2 Ng6 32. Re6 {SF17- still level, but unbalanced position would be helpful to the higher rated player}) 27. Rd7 Rc8 28. h4 $14 (28. f4 $16 {Wh suggestion in pm}) 28... Nf6 (28... b5 29. Rf7 Nf8 30. h5 c5 31. Ra7 Rc6 32. Ra8 Rf6 33. Bd5 g6 34. Bb7 Kg7 35. Rxa6 gxh5 36. Rc6 Ne6 37. Bc8 Nf4 38. Rxc5 h4 39. Kg1 (39. Rxb5 Rc6 40. Kg1 Rxc8 41. Rb7+ $15 {complicated endgame probably the mating threats are enough to prevent Wh's Q side pawns fromwinning})) 29. Re7 b6 {to take on b2 without Wh getting to take on c7 & then b7} (29... b5 {preferred by SF17- but this is putting pawns at risk of the B}) 30. Bf7 {going for a mating position if R leaves the back rank} g5 (30... Ng8 31. Rd7 Nf6 32. Re7 Ng8 $11) 31. h5 $6 {however this h pawn now can easily become a target for the N} (31. hxg5 {expected} hxg5 32. Re5 Kg7 33. Bc4 (33. Be6 Rd8 34. Rxg5+ Kh6 35. Rg3 Rd2 $11) 33... Rd8 34. Rxg5+ Kh6 35. Re5 b5 36. Bb3 Rd2 37. Re2 Rxe2 38. Kxe2 Kg5 39. Ke3 Kf5 40. Bc2+ Ke5 41. f4+ Kd6 42. Be4 $11 {SF17-Wh will have difficulty going further forward with the two f pawns, while Bl has a potential passed pawn on the Q side- though the B should be able to hold it comfortably.}) 31... Rd8 (31... c5 {was the original idea, Wh was going to reply} 32. Ra7 a5 (32... Rd8) 33. Rb7 Rc6 34. Kg2 Rd6 35. f4 gxf4 36. Kf3 Nd7 37. Ke4 Kg7 38. Be8 Re6+ 39. Kxf4 Rxe8 40. Rxd7+ Kg8 41. Rb7 $11 {SF17- there is some play left but should peter out a draw}) 32. Rxc7 Rd7 (32... Nd5 33. Bxd5 (33. Rc6 Nf4 34. Ke1 Nd3+ 35. Ke2 Ne5 36. Rc7 Nxf7 37. Rxf7 Rd5 38. Rf6 Rb5 39. b4 a5 40. bxa5 Re5+ 41. Kf1 Rxa5 42. Rxh6+ {SF17 another drawn R ending})) 33. Rxd7 Nxd7 {Bl was planning on the Wh B still being bad even outside the pawn chain, but then got a bit concerned about the safety of the N. SF17 proceeds to show how} 34. Ke2 (34. Be6 Nc5 35. Bc8 a5 36. Ke2 {is more exact, the N is running out of squares} Kg7 (36... a4 37. Ke3 Kg7 38. Kd4 (38. f4 gxf4+ 39. Kxf4 Nd3+ 40. Ke4 Nxb2 41. Kd4 $18) 38... Kf6 39. Kc4 Ke5 40. Kb5 Kf4 41. Kxb6 (41. Bg4 Nd3 42. Kxa4 Nxf2 $11) 41... Nd3 42. Ka5 Nxb2 43. Bb7 Nd3 44. Ba8 Nxf2 45. Kxa4 $18) 37. b4 axb4 38. axb4 Nb3 39. Kd3 Nc1+ 40. Kc4) 34... Kg7 35. Be6 Nc5 36. Bg4 {Wh was running very short of time here. Bl considered this very dubious as the B is a big pawn here and the h pawn did not need defence.} (36. Bc8 a5 37. b4 {is critical with variations similar to earlier ones}) 36... Kf6 37. Ke3 (37. b4 $1 {SF17 is still winning} Ne6 38. Kd3 Nc7 39. Bc8 Ke5 40. Kc4 Kf4 41. Bb7 Ke5 42. a4 {and Wh breaks into the Q side}) 37... Ke5 $11 {but the position is now much easier to play for Bl than for Wh} 38. Bc8 (38. b4 Na4 39. Kd3 Nb2+ 40. Kc3 Nd1+ 41. Kb3 Nxf2 42. Bc8 a5 43. bxa5 bxa5 44. Ka4 Kf4 45. Bb7 Nd3 46. Kxa5 Ne5 47. Kb5 Nxf3 48. a4 g4 49. Bc8 g3 50. Bh3 Nd4+ 51. Kc4 Nc6 52. Kc5 Nb8 53. Kd6 Kg5 54. a5 Kh4 55. Bf1 Na6 56. Kc6 Kxh5 57. Kb6 Nb4 58. Bg2 $11 (58. a6 Nxa6 59. Kxa6 Kg4 $19) 58... Kg4 59. Kb5 h5 60. Kxb4 h4 61. a6 h3 62. Bxh3+ Kxh3 63. a7 g2 64. a8=Q g1=Q 65. Qh8+ Kg2 66. Qg7+ Kf2 67. Qxg1+ Kxg1 $11) 38... a5 39. b4 axb4 40. axb4 Nb3 {The problem for Wh is that the N has targets, while Wh just has to sit and wait. Time shortage does not help matters} 41. b5 Na5 (41... Nd4 42. Bd7 Nc2+ 43. Kd2 Nd4 44. Ke3 Nf5+ 45. Bxf5 Kxf5 {calculations by both during the game indicated that leads to a draw} 46. Kd4 Kf4 47. Kd5 Kxf3 48. Kc6 Kxf2 49. Kxb6 g4 50. Kc6 g3 51. b6 g2 52. b7 g1=Q 53. b8=Q {Bl can win the h pawn, but then there will be a perpetual}) 42. Bd7 Nc4+ 43. Kd3 Nd6 44. Ke3 Nb7 {Bl is trying to get the N to d5} 45. Bc6 Nc5 46. Be8 (46. f4+ gxf4+ 47. Kf3 Ne6 48. Kg4 Ng5 49. Be8 {SF17-also holds}) 46... Ne6 47. Bg6 $2 {the wrong direction} (47. Bf7) (47. Bd7 {both retain a return to stop Nd5}) 47... Nc7 $19 48. Bd3 Nd5+ 49. Kd2 Nf4 50. Bg6 Nxg6 51. hxg6 Kf6 52. g7 Kxg7 53. Ke3 h5 54. f4 g4 (54... Kf6 55. fxg5+ Kxg5 {also wins- Bl trades the h pawn for the f pawn and wins the b5 pawn}) 55. f3 g3 56. Ke2 Kf6 (56... h4 57. Kf1 h3 {also}) 57. Kf1 Kf5 58. Kg2 Kxf4 0-1

[Event "Cox Trophy"]
[White "Bryant, Richard BE"]
[Black "Walker, Kate"]
[Site "?"]
[Round "1.2"]
[Annotator "Van Kemenade,Rudy"]
[Result "0-1"]
[Date "2024.12.12"]
[ECO "B12"]
[WhiteElo "1914"]
[BlackElo "1720"]
[PlyCount "84"]
[GameId "2122416208752703"]
[EventDate "2024.12.13"]

1. e4 c6 2. d4 d5 3. f3 dxe4 4. fxe4 e5 5. Nf3 Nd7 (5... Bg4) (5... exd4 {main}) 6. c3 (6. Bc4 {main}) 6... Ngf6 7. Qc2 $146 (7. Bd3 {2-1-3}) (7. Nbd2 {2-1-1}) 7... Bd6 8. Bg5 O-O 9. Nbd2 b5 10. a4 Qb6 (10... Qc7 11. Bd3 h6 12. Bxf6 Nxf6 13. dxe5 Bxe5 14. Nxe5 Qxe5 15. Nf3 Qc5 16. Qf2 $11 {SF17}) 11. a5 (11. Be2 $11) 11... Qc7 $15 12. Be2 a6 13. O-O Bb7 14. dxe5 Nxe5 15. Bxf6 gxf6 $11 16. Nd4 (16. Nxe5 Bxe5 (16... fxe5 17. Bg4 $16) 17. Nf3 Bf4 18. Bd3 c5 19. c4 Rfd8 $11 {SF17}) 16... Ng6 17. N2f3 Bc5 (17... c5 18. Nf5 Rae8 19. e5 Bxe5 20. Nxe5 fxe5 21. c4 b4 22. Rad1 $11 {SF17- though Bl has gained a pawn, which gives endgame chances}) 18. Kh1 Rad8 19. Nf5 Bc8 20. N3d4 Rfe8 21. Nh6+ Kg7 22. Ndf5+ Bxf5 23. Nxf5+ Kh8 24. b4 {releases the R , but Wh's pawn chain could be undermined by a later c5} Bf8 25. Rf3 (25. Rac1 c5 26. c4 $11 {SF17}) 25... Qe5 (25... c5 $11 {SF17}) 26. Ng3 $2 {Wh protects the wrong pawn- the e4 is a weakling, that even gets in the way of Wh's own pieces.} (26. Raf1 Qxe4 27. Bd3 Qd5 28. Nd4 Bxb4 29. Rxf6 Bxc3 30. Bxg6 Bxd4 31. Rxf7 Bg7 32. Rxg7 Kxg7 33. Bxe8 Rxe8 34. Qf2 $11 {SF17- as the open Bl K compensates for the pawn down}) (26. Nd4 Rc8 (26... Qxe4 27. Bd3 Qd5 28. Raf1 Bxb4 {as in previous note}) 27. Rf5 Qxe4 28. Bd3 Qe3 29. Rf3 (29. Rxf6 Ne5 30. Be2 c5 31. bxc5 Rxc5 32. Nf5 Qxc3 33. Qxc3 Rxc3 34. Rxa6 b4 $15 {SF17})) 26... Bxb4 $17 27. Raf1 Bd6 (27... Bxa5 28. Rxf6 Qxc3 29. Qxc3 Bxc3 30. Rxc6 b4 31. Rxa6 Rb8 32. Rb1 Rec8 33. Bd1 Ne5 $17 {SF17}) 28. Rf5 (28. Rxf6 Qg5 29. R1f5 Qe3 30. Rxf7 Bxg3 31. Rh5 h6 32. hxg3 Rd2 33. Qb3 Rxe2 34. Rh7+ Kxh7 35. Qf7+ Kh8 36. Qxe8+ Kg7 37. Qd7+ Kg8 38. Qe8+ Kg7 (38... Nf8 39. Rf5 $18) 39. Qd7+ $11 {SF17}) 28... Qe7 29. Bf3 {again, keeping the pawn on e4 just makes the wh B very bad and which itself also getsin the way of the rest of the pieces} (29. Rxf6 Bxg3 30. hxg3 Qe5 31. Rxf7 Qxg3 32. R1f3 Qe1+ 33. Rf1 Qh4+ 34. Kg1 Qg5 35. Qc1 Rd2 36. R1f2 (36. R7f2 Red8 $19 37. Bh5 Nf4 $1) 36... Red8 37. Bh5 $11) 29... Be5 $19 30. Rh5 Qa3 31. Ne2 Rd6 (31... c5 {SF17}) 32. Nd4 Qxa5 (32... Red8 33. Bg4 c5 34. Ne2 Rd2 35. Qb1 Qa2 $19 {SF17}) (32... b4 33. Nf5 b3 34. Qf2 Rd3 35. Nh6 Qe7 36. Ng4 Red8 $19 {SF17}) 33. Nf5 Rdd8 (33... Rd7 $19) 34. Qb3 (34. g3 Bxc3 (34... Qxc3 35. Qg2 Bd6 36. Qh3 Bf8 (36... Nf8 37. Qh4 Be5 38. Qg4 Ne6 39. Rxh7+ Kxh7 40. Qh5+ $11) 37. Rxh7+ Kg8 38. e5 Qxe5 39. Rxf7 Kxf7 40. Qh7+ Ke6 41. Qxg6 Kd7 42. Qf7+ Be7 43. Qa2 Qc5 44. Qxa6 Kc7 $15 {a complex engine line}) 35. Qg2 Nf8 $17 {SF17}) 34... Qc7 (34... Rd7 $19 {SF17-keeps the threat of taking on c3}) 35. Nh6 (35. g3 Qd7 36. Nh6 Qd3 37. Kg2 Ra8 38. Nxf7+ Kg7 39. Nh6 Ra7 $19 {SF17}) 35... Re7 36. Qc2 Nf4 (36... Bf4 37. Nf5 Red7 $19 {SF17}) 37. Rf5 Red7 38. g3 Ng6 39. Qb3 c5 40. Rh5 c4 41. Qc2 Rd2 42. Qc1 Bxg3 {[#] scorekeeping ran out at this point. Wh did later get in a Rxh7ch which was declined, but eventually the Wh K side attack failed, and the Bl Q side pawns won through} (42... Bxg3 43. hxg3 Ne5 $1 {SF17} (43... Qxg3 44. Nxf7+ Kg8 45. Nxd8 Rxd8 46. Qh6 $18) 44. Bg2 Qb6 45. Qa3 Re8 46. Nf5 Red8 $11 {SF17-the B protects the K but has no extra activity}) (42... b4 $1 43. Qe1 bxc3 44. Be2 c2 45. Qf2 R8d6 46. Qf3 R2d3 47. Qg4 Rd1 48. Bxd1 c1=Q $19 {SF17}) (42... R8d3 43. Qa3 Qa7 44. Bg4 Bd6 45. Qa5 Bf8 46. Nf5 Qb7 47. Re1 b4 $19 {SF17}) (42... Bxg3 {The following is a reconstruction by vk from a position reconstructed by Julie who was watching the Rh7 sacrifice} 43. hxg3 Qxg3 44. Qe1 Qc7 (44... Qxe1 45. Rxe1 Kg7 46. Nf5+ Kh8 47. Ne3 $11 {SF17}) 45. Nf5 (45. e5 fxe5 46. Be4 $18 {Sf17}) 45... Ne5 (45... Qf4 $11 {SF17}) 46. Bg2 (46. Qh4 $18 {SF17}) 46... Ng4 47. Rxh7+ $1 Kg8 {and now Rh8 ch would win(seen by Julie), as would Rg7 ch Kf8, Rxg4.SF17} (47... Kxh7 48. Qh4+ Kg8 49. Qxg4+ Kf8 50. e5 R8d3 51. Qg7+ Ke8 52. Re1 $18 {Sf17})) 0-1

[Event "Cox Trophy"]
[White "Holyhead, James"]
[Black "Bailey, Adrian"]
[Site "?"]
[Round "1.3"]
[Annotator "Van Kemenade,Rudy"]
[Result "1/2-1/2"]
[Date "2024.12.12"]
[ECO "D78"]
[WhiteElo "1626"]
[BlackElo "1761"]
[PlyCount "63"]
[GameId "2122769847537733"]
[EventDate "2024.12.13"]

{[%evp 0,18,15,23,23,5,35,16,19,7,12,12,7,17,17,-9,13,-10,34,28,24]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 c6 {A Schlechter Gruenfeld, which also has affities with a Slav} 7. b3 (7. cxd5 cxd5 8. Nc3 Nc6 9. Ne5 {main}) 7... Bf5 8. Bb2 Qd7 {11 games} (8... Nbd7 {403 games}) (8... Ne4 {390 games} 9. Nbd2 Qa5) 9. Nbd2 (9. Ne5 Qe6 $11 {3-0}) 9... Bh3 10. Ne5 Qf5 $146 (10... Qc8 $14 {1-2-2}) (10... Qe6 {Cloud Engines} 11. Rc1 {1.5-0.5}) 11. cxd5 (11. f3 Bxg2 12. Kxg2 Qc8 13. e4 $14 {SF17}) 11... Bxg2 12. Kxg2 cxd5 13. Rc1 Na6 $14 (13... Rc8 14. Ndf3 Na6 15. Qd2 Qe6 $11 {SF17}) 14. Qc2 Qe6 (14... Qxc2 15. Rxc2 Rfc8 16. Rfc1 Rxc2 17. Rxc2 e6 $11 {SF17}) 15. e4 {leads to an isolated QP and a passive B behind it} (15. Qd3 Rfc8 16. Qb5 Qb6 17. Qxb6 axb6 18. a4 Nb4 $11 {SF17}) 15... Rac8 $17 16. Qb1 dxe4 (16... Bh6 $1 17. f4 dxe4 18. Nxe4 Qd5 19. Rfe1 Rxc1 20. Bxc1 Rc8 21. Ba3 Bf8 22. Kh3 Qa5 23. Nxf6+ exf6 24. Bxf8 Kxf8 25. Nc4 Qc7 $17 {SF17}) 17. Nxe4 Qd5 18. f3 Bh6 {looks promising, but Wh can just escape} (18... Rxc1 19. Rxc1 Qd8 20. Qd3 Nc7 21. Nxf6+ Bxf6 22. Qe2 Bg7 23. Bc3 Nd5 24. Bd2 Qd6 $15 {Wh needs to defend carefully with the IQP}) 19. Nxf6+ exf6 20. Ng4 Bg7 (20... Bg5 {looks risky} 21. h4 h5 22. hxg5 hxg4 23. Qe4 gxf3+ 24. Qxf3 Qxg5 25. Ba3 Rfe8 26. Rxc8 Rxc8 27. Qxb7 Rc2+ 28. Rf2 Rxf2+ 29. Kxf2 Qd2+ {SF17- with a perpetual}) 21. Ba3 (21. Ne3 Qa5 22. Rfd1 $11 {SF17}) 21... Rfe8 $11 22. Rxc8 Rxc8 23. Rc1 Qd7 24. Rxc8+ Qxc8 25. Qd3 h5 26. Ne3 Qd7 27. Qc4 (27. d5) 27... Nc7 28. d5 f5 29. Bb4 Na6 30. d6 (30. Ba3 $11) (30. Bd2 $11) 30... Nxb4 (30... b5 31. Qf4 Nxb4 32. Qxb4 Be5 33. a4 Bxd6 (33... bxa4 34. Nc4 $11) 34. Qxb5 Qxb5 35. axb5 Kf8 (35... f4 36. gxf4 Bxf4 37. Nd5 Bd6 38. b6 axb6 39. Nxb6 $11) 36. f4 $11 {SF17}) 31. Qxb4 Bf8 32. Nd5 {[Draw?]} (32. Nd5 Qxd6 (32... Kg7 $2 33. Qd4+ $18) (32... Bxd6 33. Nf6+ Kg7 34. Qxd6 (34. Qd4 {also wins}) 34... Qxd6 35. Ne8+ $18) 33. Qxb7 Qe5 34. f4 Qe2+ 35. Kh3 Qg4+ 36. Kg2 Qe2+ {perpetual}) 1/2-1/2

[Event "Cox Trophy"]
[White "Van Kemenade, J."]
[Black "Etchells, Michael"]
[Site "?"]
[Round "1.4"]
[Annotator "Van Kemenade,Rudy"]
[Result "1/2-1/2"]
[Date "2024.12.12"]
[ECO "C64"]
[WhiteElo "1640"]
[BlackElo "1583"]
[PlyCount "70"]
[GameId "2122638296219679"]
[EventDate "2024.12.14"]

{[%evp 0,13,12,20,-17,10,18,12,33,28,33,11,13,59,7,18]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O d6 5. d3 (5. c3 {main}) 5... Bg4 (5... Nf6 {main}) 6. h3 Bh5 7. Be3 {Cloud Engines} (7. Nc3 Nge7 8. Bg5 {0-8}) 7... Bb6 (7... Bxe3 8. fxe3 $11 {but gives Wh chances down the f file} Nge7 9. Nbd2 O-O 10. c3 {Simanowski-Vavro, NRW ch U12, Kranenburg 2008,1-0}) 8. c3 Nf6 (8... Nge7 9. Nbd2 O-O 10. g4 Bg6 11. Nh4 Nc8 12. Nf5 Bxf5 13. gxf5 Qh4 14. Kh2 Kh8 15. Rg1 Bxe3 16. fxe3 Qf2+ 17. Rg2 Qxe3 18. Qg4 Qf4+ 19. Qxf4 exf4 20. Bxc6 bxc6 21. Rf1 $11 {Osetrov-Markov,Kimry Autumn 2010,1/2-1/2}) 9. Nbd2 O-O 10. Re1 (10. Qc2 a6 {2-0}) 10... Ne7 $146 (10... a6 11. Ba4 Bxe3 12. Rxe3 b5 13. Bb3 Na5 14. Nf1 Nxb3 15. Qxb3 Bg6 16. Ng3 Nh5 $11 {Kneutgen-Weisshaupt,Mittelrhein ch tm 2012,1/2-1/2}) (10... Re8 11. Nf1 a6 12. Ba4 Bxe3 13. Rxe3 b5 14. Bc2 Qd7 15. Ng3 Bg6 16. a4 $14 {Devallee-Bidault, Ville d'Orsay online blitz 2021,1-0}) 11. g4 (11. d4 $14 {SF17}) 11... Nxg4 $5 (11... Bg6 $11) 12. hxg4 Bxg4 13. Bxb6 (13. Kh1 f5 14. Rg1 d5 15. exd5 Nxd5 16. Bxb6 axb6 17. Qe1 $18 {SF17}) (13. d4 {vk and SF17 second line- threaten to unpin with Be2} f5 14. dxe5 fxe4 15. Qb3+ Kh8 16. Nh2 Bxe3 17. Rxe3 Nf5 18. Rxe4 $18) 13... axb6 14. Re3 Ng6 15. Qf1 (15. Kh1 Nf4 16. Qg1 f5 17. d4 Rf6 18. Nh2 Kh8 19. Bf1 $14 {SF17}) 15... Nf4 $11 16. Nh2 Qh4 17. Ndf3 (17. Nxg4 Qxg4+ 18. Rg3 Ne2+ 19. Kg2 Nf4+ {repetition} (19... Nxg3 20. fxg3 f5 21. Bd7 g6 22. Nf3 Rad8 23. Be6+ Kg7 24. exf5 Rf6 (24... gxf5 25. Nh4 $18) 25. Nh2 Qg5 26. g4 gxf5 27. Bxf5 h5 28. Nf3 Qf4 29. Nh4 Qg5 30. Nf3 {Sf17 repetition})) (17. d4 Nh3+ 18. Kg2 Nf4+ 19. Kg1 (19. Kh1 Bh3 20. Qe1 Ng2 21. Qe2 Nf4 22. Qe1 Ng2) 19... Nh3+ {SF17-repetition}) 17... Nh3+ 18. Kg2 Nf4+ 19. Kh1 Qh5 (19... Qh6 20. Qg1 f5 21. Bc4+ Kh8 22. Qg3 Bxf3+ 23. Qxf3 Rf6 24. Rg1 Raf8 25. Qg3 Rg6 26. Qf3 Rgf6 27. Qg3 {SF17 repetition}) 20. Qg1 (20. Ng1 {vk- covers h3 and e2} Qh6 21. d4 Kh8 $11 {SF17- here means both sides have equal chances rather than level}) 20... f5 (20... Be6 21. Bc4 Bxc4 22. dxc4 f5 23. Qg5 Qxg5 24. Nxg5 h6 25. Nh3 fxe4 26. Nxf4 Rxf4 27. Re2 Raf8 $11 28. Kg2 {SF17- Bl has 3 pawns for the piece, roughly eqiuivalent for both sides}) 21. exf5 (21. Qg3 Qh6 22. Nh4 (22. Qh4 Bh5 23. Rg1 Kh8 24. Bc4 b5 $11) 22... Nh5 23. Qg1 Nf4 24. exf5 Bh3 25. Qg3 Bxf5 26. Rg1 (26. Nxf5 Rxf5 27. Bd7 Rg5 28. Bg4 Rf8 29. Rg1 Qf6 $11) 26... Be6 27. Bc4 Bxc4 28. dxc4 Rxa2 29. Ng4 Qg5 30. Nxe5 Qxg3 31. fxg3 dxe5 32. gxf4 Rxf4 33. Ng2 Rf2 34. b3 Rab2 $11 {SF17- as before both sides have chances}) 21... Bh3 22. Qg5 $2 (22. Qg3 Bg2+ 23. Kg1 Rxf5 24. Bd7 Rf6 25. Bg4 Qf7 26. Ng5 Qg6 27. Ne4 Bxe4 28. dxe4 $11) 22... Bg2+ 23. Kg1 Rxf5 $2 (23... Nh3+ 24. Kxg2 Nxg5 $19) 24. Qxh5 Rxh5 25. Ne1 (25. Bc4+ Kh8 26. d4 $18 {SF17}) 25... Bh3 (25... Bd5 $11 {SF17}) 26. d4 (26. Bc4+ Kh8 27. d4 d5 28. Bb3 $16 (28. Bf1 $16 {SF17})) 26... Rf8 (26... exd4 27. Bc4+ d5 28. Rf3 dxc4 29. Rxf4 Rg5+ 30. Kh1 d3 31. Nhf3 (31. Rxc4 d2 32. Nhf3 (32. Nef3 Bg2+ 33. Kg1 Bxf3+ 34. Kf1 Rxa2 $19) 32... dxe1=Q+ 33. Nxe1 Be6 $19) 31... Rh5 32. Kg1 b5 33. Ng2 c5 34. Ne3 Ra6 $11 {SF17}) 27. dxe5 $18 c6 28. Bc4+ {SF17} d5 29. Bf1 (29. Bd3 Re8 30. Nhf3 $18 {SF17}) 29... Rff5 (29... Bxf1 30. Nxf1 Nh3+ 31. Rxh3 Rxh3 32. Ng3 $18 {SF17}) 30. Nef3 (30. Nd3 Rfg5+ 31. Rg3 Nxd3 32. Bxd3 Rxe5 33. Nf3 Re7 34. Rg5 Rh6 35. a4 $18 {SF17}) 30... Rh6 31. Bxh3 Nxh3+ 32. Kf1 Nf4 33. Kg1 {both sides short of time} (33. e6 $1 $18 {SF17} Nxe6 (33... Kf8 34. e7+ Ke8 35. a4 c5 36. b4 d4 37. cxd4 Nd5 38. Ree1 Nxb4 39. Rad1 Rd5 40. Re4 Rf6 41. Rg4 Rf7 42. Ne5 Rxe7 43. Nhf3 cxd4 44. Rdxd4 (44. Nc4 Nc6 45. Nxb6 $18 {SF17- even more obscure}) 44... Rxd4 45. Rxd4 Nc6 46. Rd5 Nxe5 47. Nxe5 {SF17- but a long difficult game in prospect}) 34. Rxe6 Rxe6 35. Nd4 Rfe5 36. Nxe6 Rxe6 37. Nf3 $18) (33. a4 Rf8 34. a5 Ra8 35. Ra4 Ne6 36. b4 $18 {SF17 second line,}) 33... Nh3+ 34. Kf1 (34. Kg2 Nf4+ 35. Kh1 Nh3 36. Rf1 $18 {not SF17 preferred continuation as the Wh pieces need quite a bit of untangling} Kf8 37. Rd3 Ke7 38. Rd2 g5 39. Ng1 Nf4 40. Ne2 Rxe5 41. Nxf4 gxf4 42. f3 Rhe6 43. Ng4 Re2 44. Rxe2 Rxe2 45. Rf2 Re1+ 46. Kg2 h5 47. Nh2 b5 48. Kh3 c5 49. Kh4 Re5 50. Nf1 $16 {SF17}) 34... Nf4 35. Kg1 Nh3+ 1/2-1/2

