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Polgar, Judit (2735) - Kasimdzhanov, Rustam (2670) [B81]
FIDE World Championship, San Luis (3) 2005

Notes by Boris Schipkov

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6








   
7. g4!
The most active continuation.
7...e5 8. Nf5 g6 9. g5 gxf5








   
10. exf5!
Judit sacrifices her knight and acquires two strong pawns on f5 and g5.
10...d5 11. Qf3 d4 12. O-O-O Nbd7








   
13. Bxd4!?
Judit bravely sacrifices her bishop also!
13...exd4 14. Rxd4








   
14...Bg7?!
A dubious novelty. Black could try 14...Bc5. After 14...Bc5 15. Rd2
(15. Rd1 Qc7 16. gxf6 (16. Kb1 Rg8) 16...Nxf6 17. Bc4 Bd7 (17...Rg8, 17...Be7) 18. Rhe1+ Kf8 19. Nd5 Nxd5 20. Bxd5 Rg8 21. Qh5 (21. Kb1) 21...Ba4? (21...Rg7) 22. Qh6+ Rg7 23. Be4? (23. Bc4 wins) 23...Kg8 (23...f6!? 24. Qxf6+ Kg8) 24. Rg1? (24. f6 Rg6 25. Qh4=) 24... Bf8 25. f6 Rg6 26. Qd2 Rc8 27. Bxg6 hxg6, 0-1 Maeer,K-Tredinnick,A/England corr 1986)
15...Qc7 (15...O-O?! 16. gxf6 Qxf6? (16...Kh8) 17. Rg1+ Kh8 18. Ne4 Qe7 19. f6?! (19. Qg3! f6 20. Bc4 h6 21. Qh4+-) 19...Nxf6 20. Nxc5 Bg4 21. Qe3 Rae8 22. Qxe7 Rxe7 23. Bg2 Bc8 with an edge to White in Firt,S-Sobek,J/Czechia 1996) 16. gxf6 Nxf6 17. Nd5 (17. Bc4?! Be7 18. Bb3 (18. Re1 O-O) 18...O-O 19. Re1 Kh8 20. Qe3 Bd8 21. Qd4 Bxf5 22. Re5 Bg6 Black had huge advantage in Pulkkinen,K-Oll,L/Helsinki 1990)
17...Nxd5 18. Rxd5 Rg8 (18...Be7) 19. Bh3 (19. Qe4+ Be7 20. f6 Be6 21. fxe7 Bxd5 22. Qxd5 Qf4+ 23. Kb1 Qxf2 24. Qd1 Kxe7 25. Bd3 Rg7 26. Rf1 Qb6 27. Qh5) 19...Bd7 20. Re1+ Kf8 21. Qh5 Qf4+ (21...Ba4!? 22. Kb1 f6) 22. Kb1 Re8 23. Rc1 Bd6 24. Qd1 Be7 25. Rd4!= Qxh2 26. Rxd7 Qxh3 27. f6 Bxf6 28. Qd6+ Be7 29. Rxe7 Rxe7 30. Qd8+ White made a draw by perpetual check in Glazman,M-Claridge,J/ICCF Email 2001, 1/2.
15. Rg1!? Kf8 16. Qe3! Qe7 17. Qd2








   
17...h6
Or 17...Rg8 18. Rg3 Nh5 19. f6 Nhxf6 20. Re3 Qd8 21. Nb5 (21. Na4) 21...Bh6 (21...a5 22. Qd3) 22. Qb4+ Kg7 23. gxh6+ Kh8 24. Nd6 Qf8 25. Bc4 and White wins.
18. gxf6 Nxf6 19. Rd8+ Ne8








   
20. Bb5!
Great!
20...axb5 21. Re1 b4?
In the case of 21...Be5 White has a clear edge with 22. f4 Bf6 (22...Bxf4 23. Rxe8+ Qxe8 24. Rxe8+ Kg7 25. Qxf4 Rxe8 26. Nd5) 23. Rxe7 Bxe7 24. Qd4 f6 25. Nxb5 Bxd8 26. Qxd8 Kf7 27. Nc3 Rh7 28. Nd5 Kf8 29. Nxf6 Re7 30. Nxe8 Rd7 31. Qf6+ Kxe8 32. Qh8+ Kf733. Qxh6.








   
22. Nb5?
Correct is 22. Rxe8+ Kxe8 23. Rxe7+ Kxe7 24. Nd5+ Kd6 (24... Kf8 25. Nb6 Bf6 26. Nxa8) 25. Nb6+ Ke5 26. Qd5+ Kf6 27. Qd4+ Kxf5 28. Qxg7, winning.
22...Bxb2+?
Better is 22...Be5 23. Kb1 (23. f4? Rxa2) 23...Kg7 24. Rd5 (24. f4? Bxf4 25. Qd4+ Qf6) 24...Qg5.








   
23. Kxb2
Also possible is 23. Kb1 Be5 24. f4 f6 25. fxe5 fxe5 26. f6 Qxf6 27. Nc7.
23...Qf6+ 24. Qd4 Kg7 25. Rexe8 Rxe8 26. Rxe8 Qxd4+ 27. Nxd4 Kf6 28. f4!
White gets a winning advantage in the ending.








   
28...b6 29. Rd8 Bb7 30. Rxa8 Bxa8 31. Kb3 Bd5+ 32. Kxb4 Bxa2 33. Kb5 Bb1








   
34. c3! Ke7 35. Kxb6 Kd6 36. c4! Bd3 37. c5+ Kd5 38. Nc6!








   
38...Ke4
After 38...Bxf5 39. Ne7+ Ke4 40. Nxf5 Kxf5 41. c6 White wins quickly by queening the c-pawn.
39. Ne7 Bc2 40. c6 Ba4 41. c7 Bd7 42. Kc5
Black resigned. 1-0

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