Kopylov, Alexander (2344) - Aketaeva, Dana (2248) [E34]
Chess Siberia-2007 A (1), Novosibirsk 2007
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. e3 O-O 7. Nf3 c5 8. Bd2
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8...Bxc3
Or 8...Qh5 9. Be2 cxd4 10. Nxd4 Qg6 11. O-O e5 12. Bd3 Qh5 13. Nde2 Nc6 14. a3 Bxc3 15. Bxc3 Be6 16. Ng3 Qh4 17. Nf5 Qh5 18. Ng3 Qh4 19. Nf5 1/2, Sokolov, I - Romanishin, O, Groningen 1991.
9. Bxc3 cxd4
Also possible is 9...Nc6.
10. Bxd4 Nbd7
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11. Be2
A novelty. In the game Rehberg, C - Shapiro, O, US op, Baltimore 1948, White had a small advantage with 11. Bc4 Qh5 12. O-O (12. Be2!?) b6 13. Be2 Bb7.
11...e5
The alternative is 11...b6.
12. Bc3 e4 13. Rd1 Qf5
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14. Nd4
14. Nd2!? and 14. O-O!? Nb6 15. Nd2 are better.
14...Qg5!
A fine move. Black gets good counterplay on the kingside
15. O-O Ne5
15...Nb6! is even stronger.
16. f4
16. Kh1 is playable.
16...exf3 17. Nxf3 Qxe3+ 18. Kh1 Neg4!
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19. Bd4
If 19. Nd4 then 19...Nf2+ 20. Kg1 Nh3+ 21. Kh1 Qg1+ 22. Rxg1 Nf2.
19...Qh6 20. Bc5?!
White could try 20. Bc4.
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20...Ne3
After the imperturbable 20...Be6! 21. Bxf8 Rxf8 Black obtains a clear edge with various threats.
21. Bxf8?!
White sacrifices his queen. In the case of 21. Bxe3 Qxe3 the second player has an extra pawn.
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21...Nxc2?
Black could win with the powerful blow 21...Bh3! 22. Qd3 Bxg2+ 23. Kg1 Bxf1.
22. Rd8 Bd7 23. Rxa8 Be8?
23...Ne8 is correct.
24. Bc5 a6 25. Bd3 Qh5
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26. Be7
Winning.
26...Ne3 27. Bxf6 gxf6 28. Rxe8+ Kg7 29. Rxe3
Black resigned. 1-0
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