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A Nice Bishop Sacrifice

Volkov, Sergey (2623) - Socko, Bartosz (2657) [E27]
Rilton Cup 2013-2014, Stockholm (7) 2014

Notes by Boris Schipkov

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4
The Nimzo-Indian Defense.
4. f3 d5 5. a3 Bxc3+ 6. bxc3








   
6...O-O
Magnus Carlsen played the usual 6...c5 against Viswanathan Anand in game 9 in Chennai 2013.
7. cxd5 exd5 8. e3 Nh5
The text is a more aggressive move than 8...c5.
9. Ne2 Re8 10. g4!?
Also aggressive. White tries to seize space on the kingside and wants to play the king in the opening in the style of Steinitz.
10...Qh4+ 11. Kd2 Nf6 12. Qe1 Qh6
After 12...Qxe1+?! 13. Kxe1 White has a small but lasting advantage in the endgame thanks to two bishops.









   
13. Nf4!
A strong novelty. After 13. Kd1 Nfd7! 14. Qg3?! c5 (14...Nb6 15. Qxc7 Nc4 16. Qf4 Qb6 17. Ke1 Qb3 18. h4 f6 19. Kf2 Nc6 or 14...Qb6 15. Ke1 Nc6 16. Kf2 Na5, with a small edge to Black) 15. Ke1 (15. Nf4!?) 15...cxd4?! (15...Nc6 16. Kf2 Qg6) 16. cxd4 Nb6 17. Kf2 Qc6, with counterplay in Volkov, S - Gavrilov, A, St Petersburg 2011. Or 14. Nf4 Nb6 15. Bd3 Bd7?! (better is 15...Nc6!=) 16. a4! Bxa4+ (16...a5) 17. Rxa4 Nxa4 18. Bb5 Nxc3+ 19. Qxc3 c6 20. Bd3 Qh4 21. Qc2 Na6 22. Bxa6 bxa6 23. Ke2, with a small edge to White in Tinture, L - Martin Sanchez, C, ICCF email 2011.
13...c5 14. Bd3 b6?!
More active is 14...Nc6!?, developing pieces.
15. h4! Nfd7








   
16. Bg6!!
A fantastic bishop sacrifice! White isolates Black's queen from the center. This is a real sacrifice, because White cannot win in few moves, but White has compensation: nice pawns, superiority in development and good attacking prospects. If 16. Nxd5?! then 16...cxd4 17. cxd4 Nc6 18. Bb2 Na5 19. Qd1 Bb7 20. Nf4 b5, with counterplay.
16...hxg6
White traps Black's queen after 16...fxg6? 17. g5.
17. g5 Qh7 18. h5 Kf8 19. hxg6 Qg8 20. Qg3!
A powerful move: White activates his queen.
20...Bb7!?
Other moves are weaker. After 20...Na6 21. Rh7 Ke7 (21...fxg6 22. Nxg6+ Kf7 23. Rh8 Qxh8 24. Nxh8+ Rxh8 25. Qd6 Rb8 26. g6+ Ke8 27. Qxd5) 22. Nh5 fxg6 23. Rxg7+ Qxg7 24. Nxg7 Rg8 25. Nf5+ gxf5 26. Bb2 Bb7 27. Rh1 Rae8 28. Rh7+ Kd8 29. Qd6 Nab8 White wins with 30. g6. Or 20...f6 21. Rh7 Nc6 22. Nh5 Re7 23. gxf6 Nxf6 24. Qf4 Re6 25. c4, winning.









   
21. Nxd5!
White attacks!
21...Ne5!
Black counterattacks! He rapidly loses after the simple and bad 21...Bxd5? 22. Qd6+ Re7 23. Qxd5 Nc6 24. gxf7 Rxf7 25. Qxc6.
22. gxf7!
More precise than 22. Nc7 Nc4+ (22... Nxf3+ 23. Ke2) 23. Ke2 fxg6 24. e4 Na6 25. Nxa8 Bxa8 26. Kf2, though White is better here.
22...Nxf7 23. Nc7 g6 24. d5!
After 24. Nxe8 Kxe8 25. e4 White is better.
24...Nd7 25. e4 Nde5 26. Kc2 Rac8








   
27. Ne6+!
Again the strongest move, though White can continue 27. Nxe8 Rxe8 28. Bf4 Qg7 29. Rh4, with a clear edge.
27...Ke7 28. Bf4
Also possible is 28. f4 Nc4 29. f5 gxf5 30. g6 Nfe5 31. Bf4 Nxg6 32. Rag1 Kd7 33. Kc1 a5 34. Qxg6 Qxg6 35. Rxg6 Re7 36. exf5 Rf7 37. Rd1.
28...Nc4
Or 28...Kd6 29. Rad1 Bc6 30. Kc1 Ba4 31. Rd2 Re7 (31...Rxe6 32. dxe6+ Kxe6 33. Bxe5 Nxe5 34. f4) 32. Bxe5+ Nxe5 33. f4 Nc4 34. f5+ Ne5 35. Rh6, and White wins.
29. Rh4 Red8
Or 29...Bc6 30. Rah1 Bd7 31. Nc7 Rf8 32. Rh7.
30. a4 Qe8








   
31. Bc7
White can take the rook to grab the exchange with 31. Nxd8! Kxd8 32. Qh2 Qd7 33. Rh7 Ke8 34. a5 bxa5 (34...Nxa5 35. Rh8+ Nxh8 36. Qxh8+ Kf7 37. Qh7+ Ke8 38. Qg8+ Ke7 39. d6+) 35. Rg7, winning fast.
31...Ne3+
Or 31...Rxd5 32. exd5 Bxd5 33. Nf4 Ne3+ 34. Kc1 Qc6 35. Qe1 Kd7 36. Qxe3 Kxc7 37. a5, and White wins.
32. Kc1
White can play 32. Kd3 Nxd5 33. Bxd8+ Rxd8 34. Nxd8 Ba6+ 35. Kd2 Qxd8 36. exd5 Qxd5+ 37. Ke3, winning.
32...Rxd5 33. exd5 Bxd5 34. Nf4 Kd7 35. Nxd5 Nxd5








   
36. Re4!
Since Black has no counterplay and a knight vs a rook White wins easily.
36...Qh8 37. Be5 Nxe5 38. Rxe5 Nxc3 39. Kd2 Re8








   
40. Rxe8
Here White can grab the c3-knight after 40. Qg4+! Kc7 41. Rxe8 Qxe8 42. Qf4+ Kb7 43. Kxc3 Qh8+ 44. Qf6.
40...Qxe8
The first player wins and after 40...Qd4+ 41. Kc2 Nd5 42. Qe5 Nb4+ 43. Kb3 Qd3+ 44. Qc3.
41. Re1 Qh8 42. Qg4+ Kd8 43. Qf4 Kc8 44. Qf6 Qh4 45. Qc6+
Black resigned. 1-0










Move
   

Volkov, Sergey (2623) - Socko, Bartosz (2657) [E27]
Rilton Cup 2013-2014/Stockholm (7) 2014

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 O-O 7. cxd5 exd5 8. e3 Nh5 9. Ne2 Re8 10. g4 Qh4+ 11. Kd2 Nf6 12. Qe1 Qh6 13. Nf4 c5 14. Bd3 b6 15. h4 Nfd7 16. Bg6 hxg6 17. g5 Qh7 18. h5 Kf8 19. hxg6 Qg8 20. Qg3 Bb7 21. Nxd5 Ne5 22. gxf7 Nxf7 23. Nc7 g6 24. d5 Nd7 25. e4 Nde5 26. Kc2 Rac8 27. Ne6+ Ke7 28. Bf4 Nc4 29. Rh4 Red8 30. a4 Qe8 31. Bc7 Ne3+ 32. Kc1 Rxd5 33. exd5 Bxd5 34. Nf4 Kd7 35. Nxd5 Nxd5 36. Re4 Qh8 37. Be5 Nxe5 38. Rxe5 Nxc3 39. Kd2 Re8 40. Rxe8 Qxe8 41. Re1 Qh8 42. Qg4+ Kd8 43. Qf4 Kc8 44. Qf6 Qh4 45. Qc6+ 1-0


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© 2014 Boris Schipkov