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Subject: Another interesting bishop sac (this time at a3) from Hossa

Author: Steffen Jakob

Date: 23:23:59 12/09/99


Hi all!

The move Bxh6 from Hossa against Beadle caused a big discussion here. Today
Hossa played another sac of this kind, this time with black at a3. Here is the
score of the game:

[Event "ICC 7 0"]
[Site "Internet Chess Club"]
[Date "1999.12.10"]
[Round "-"]
[White "PostModernist"]
[Black "Hossa"]
[Result "0-1"]
[ICCResult "White checkmated"]
[WhiteElo "2580"]
[BlackElo "2507"]
[Opening "Caro-Kann: classical, 6.h4"]
[ECO "B18"]
[NIC "CK.11"]
[Time "01:47:02"]
[TimeControl "420+0"]

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. h5 Bh7 8.
Nf3 Nd7 9. Bd3 Qa5+ 10. Bd2 Qb6 11. Bxh7 Rxh7 12. Bc3 O-O-O 13. Qd2 e6 14.
O-O-O Qa6 15. a3 Nb6 16. Ne5 f6 17. Ng6 Bxa3 18. bxa3 Nc4 19. Qe1 Qxa3+ 20.
Kb1 Rd5 21. Qxe6+ Kc7 22. Qf7+ Kb6 23. Qxd5 cxd5 24. Rd3 Qa4 25. Nf4 Qc6 26.
Re1 Kc7 27. Nf5 Qd7 28. Ne6+ Kc8 29. Rg3 Na3+ 30. Kb2 Ne7 31. Nxe7+ Qxe7 32.
Nxg7 Nc4+ 33. Kb1 Qd7 34. Re8+ Kc7 35. Bb4 Kc6 36. Re7 Qc8 37. Re8 Qc7 38.
Re6+ Kb5 39. Rb3 Ka4 40. Bc3 a5 41. Ra6 bxa6 42. Ne6 Re7 43. Nxc7 Rxc7 44.
g3 Re7 45. Kc1 Re2 46. f3 Rh2 47. Be1 Rxh5 48. Kd1 Rh2 49. f4 f5 50. Kc1 Rg2
51. Kd1 h5 52. Kc1 Re2 53. Kd1 Rh2 54. Kc1 Rg2 55. Kd1 Rg1 56. Ke2 Rh1 57.
Rb7 Rh2+ 58. Kd3 Na3 59. Rb2 Rh3 60. Rb6 Rh1 61. Re6 Nc4 62. c3 Kb3 63. Ke2
a4 64. Rxa6 a3 65. Ra7 a2 66. Rxa2 Kxa2 67. Bf2 Kb3 68. Kf3 Nd2+ 69. Kg2 Rb1
70. Be3 Kxc3 71. Kh3 Nf3 72. Kg2 Ne1+ 73. Kh3 Kd3 74. Bg1 Nf3 75. Bf2 Kd2
76. Kg2 Ke2 77. g4 hxg4 78. Kg3 Rf1 79. Kg2 Rxf2+ 80. Kg3 Rf1 81. Kg2 Rg1#
{White checkmated}
0-1


The interesting position is after move 17 from white:

2kr1bn1/pp4pr/qnp1ppNp/7P/3P4/P1B3N1/1PPQ1PP1/2KR3R b

I had a short look at this position with crafty who said that after 17... Bxa3
18. bxa3 Nc4 19. Qd3 Qxa3+ 20. Kb1 Rd5 21. Qxc4 Rb5+ 22. Qxb5 cxb5 white has a
big advantage.

Is there a better way for black to play? Maybe an idea is 20. ... b5 21. Nf4 g5
22. hxg6 Rb7 23. Qf3 (23. Nxe6 b4 24. Ba1 b3 25. Qxc4 Qa2+ 26. Kc1 b2+ 27. Bxb2
Qxc4) b4 24. Qxc6+ (24. Ba1 b3) Kb8 and I think black is winning.

What does your program say? What do you say?

Best wishes,
Steffen.



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