Author: Dann Corbit
Date: 21:28:23 01/06/02
Go up one level in this thread
On January 06, 2002 at 21:26:19, Peter Kappler wrote:
>Christiansen sacrificed a rook for two pawns here, with Rxe6!?
>
>[D]r3k2r/pp1n1pbp/2p1p1p1/1q6/3P4/1QP2N1P/PP3PP1/R1B1R1K1 w kq - 2 14
>
>He went on to win the game (see PGN below), but is this sac really sound?
>You'll probably want to skip ahead a few moves and start from this position:
>
>[D]r1k4r/pp1n2bp/2p1Q1p1/1q4B1/3P4/2P2N1P/PP3PP1/R5K1 w - - 2 17
>
>Christiansen played Re1 here, which Chess Tiger thinks is losing for White (-2
>pawns or so). Instead, Tiger prefers Qf7, and sees a lot of compensation for
>White, but not enough to justify the sacrifice. For example: 1. Qf7 Bf6 2. Bxf6
>Qf5 3. Ne5 Nxf6 4. g4 Nxg4 5. hxg4 Qxf7 6. Nxf7 Rf8 7. Re1 Kd7 8. Ne5+ Kd6 and
>White has a pawn for the exchange but is probably losing.
>
>Crunch this one for a while and tell me if you find differently.
>
>-Peter
>
>[Event "US Championships"]
>[Site "Seattle, Washington"]
>[Date "2002.01.06"]
>[Round "2"]
>[White "Christiansen(GM)"]
>[Black "Foygel(FM)"]
>[Result "1-0"]
>[WhiteElo "2571"]
>[BlackElo "2474"]
>[Opening "Robatsch defense"]
>[ECO "B06"]
>[NIC "KF.05"]
>[Time "15:34:06"]
>[TimeControl "6000+30"]
>
>1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d5 5. h3 Nf6 6. Bd3 dxe4 7. Nxe4 Nxe4 8.
>Bxe4 Bf5 9. Bxf5 Qa5+ 10. c3 Qxf5 11. O-O Nd7 12. Re1 e6 13. Qb3 Qb5 14.
>Rxe6+ fxe6 15. Qxe6+ Kd8 16. Bg5+ Kc8 17. Re1 Rf8 18. Qe7 Kc7 19. Qxg7 Rxf3
>20. Re5 Qxb2 21. gxf3 {White wins} 1-0
[D]r3k2r/pp1n1pbp/2p1p1p1/5q2/3P4/2P2N1P/PP3PP1/R1BQR1K1 w kq - acd 13; acn
99508403; acs 201; ce 1; pv Qd2 O-O-O Qf4 h6 Qxf5 gxf5 a4 Rhg8 b3 h5 Ng5 Rdf8
Bf4 h4;
[D]r3k2r/pp1n1pbp/2p1p1p1/5q2/3P4/1QP2N1P/PP3PP1/R1B1R1K1 b kq - acd 14; acn
95763465; acs 201; ce -77; pv b5 Qa3 Qd5 Bf4 a5 Qd6 Qxd6 Bxd6 Nb6 Nd2 Kd7 Bc5
Nc4 Ne4 Nxb2;
[D]r3k2r/pp1n1pbp/2p1p1p1/1q6/3P4/1QP2N1P/PP3PP1/R1B1R1K1 w kq - acd 15; acn
100064170; acs 202; ce 108; pv Qxb5 cxb5 d5 e5 Be3 O-O Rad1 a6 Ng5 h6 Ne4 f5 Nc5
Nxc5 Bxc5 Rfc8;
[D]r3k2r/pp1n1pbp/2p1R1p1/1q6/3P4/1QP2N1P/PP3PP1/R1B3K1 b kq - acd 14; acn
105658808; acs 201; ce 159; pv fxe6 Qxe6+ Kd8 Ng5 Qd5 Nf7+ Kc7 Qxd5 cxd5 Nxh8
Rxh8 Bf4+ Kb6 Re1;
[D]r3k2r/pp1n2bp/2p1p1p1/1q6/3P4/1QP2N1P/PP3PP1/R1B3K1 w kq - acd 14; acn
107667704; acs 202; ce -179; pv Qxe6+ Kd8 Ng5 Qd5 Nf7+ Kc7 Bf4+ Kb6 Qxd5 cxd5
Nxh8 Rxh8 Re1 Rf8 Re6+ Kb5 Bd6 Rf6;
[D]r3k2r/pp1n2bp/2p1Q1p1/1q6/3P4/2P2N1P/PP3PP1/R1B3K1 b kq - acd 14; acn
106479786; acs 201; ce 147; pv Kd8 Bg5+ Kc7 Bf4+ Kc8 Re1 Rd8 Bg5 Rf8 Bf4 Bf6 Qd6
Qa5 Bh6 Rf7;
[D]r2k3r/pp1n2bp/2p1Q1p1/1q6/3P4/2P2N1P/PP3PP1/R1B3K1 w - - acd 13; acn
112849324; acs 201; ce -194; pv Ng5 Rf8 a4 Qf5 Qxf5 Rxf5 Ne6+ Ke7 Nxg7 Rf7 Bh6
Kf6 Re1 Rxg7 Bxg7+ Kxg7;
[D]r2k3r/pp1n2bp/2p1Q1p1/1q4B1/3P4/2P2N1P/PP3PP1/R5K1 b - - acd 13; acn
110318754; acs 202; ce 61; pv Kc8 Qf7 Bf6 Bxf6 Qf5 Ne5 Nxf6 g4 Nxg4 hxg4 Qxf7
Nxf7 Rf8 Ne5;
[D]r1k4r/pp1n2bp/2p1Q1p1/1q4B1/3P4/2P2N1P/PP3PP1/R5K1 w - - acd 14; acn
115635259; acs 201; ce -150; pv Qf7 Rf8 Qxg7 Rxf3 Be7 Qxb2 Rf1 Kc7 gxf3 Qxc3
Qxh7 Qxf3 Qxg6 Qxh3;
[D]r1k4r/pp1n2bp/2p1Q1p1/1q4B1/3P4/2P2N1P/PP3PP1/4R1K1 b - - acd 14; acn
111042708; acs 202; ce 221; pv Qf5 Qd6 Qd5 Qe7 Rg8 c4 Qf5 Qd6 Bf6 Bf4 Bd8 d5 Qf8
Qe6 Rg7;
[D]r1k2r2/pp1n2bp/2p1Q1p1/1q4B1/3P4/2P2N1P/PP3PP1/4R1K1 w - - acd 13; acn
111723128; acs 201; ce -239; pv Be7 Rh8 Qf7 Bh6 Ne5 Bd2 Bg5 Nxe5 Rxe5 Bxg5 Rxb5
cxb5 d5;
[D]r1k2r2/pp1nQ1bp/2p3p1/1q4B1/3P4/2P2N1P/PP3PP1/4R1K1 b - - acd 13; acn
108306387; acs 201; ce 171; pv h6 Qxg7 hxg5 Ne5 Rd8 Nf7 Kc7 Qxg6 Qxb2 Qd6+ Kb6
Nxd8 Rxd8 Re7;
[D]r4r2/ppknQ1bp/2p3p1/1q4B1/3P4/2P2N1P/PP3PP1/4R1K1 w - - acd 13; acn
108183979; acs 202; ce -10; pv Qxg7 Rxf3 Re5 Qxb2 gxf3 Qa1+ Kg2 h6 Re7 Rd8 Bf4+
Kc8 Bd2 Qxa2 Bxh6;
[D]r4r2/ppkn2Qp/2p3p1/1q4B1/3P4/2P2N1P/PP3PP1/4R1K1 b - - acd 13; acn 109603938;
acs 201; ce -158; pv Qd5 Ne5 Rae8 Qxh7 Kc8 Qxg6 Nxe5 Rxe5 Rxe5 dxe5 Qxe5 Be3 Qd5
Qb1;
[D]r7/ppkn2Qp/2p3p1/1q4B1/3P4/2P2r1P/PP3PP1/4R1K1 w - - acd 14; acn 113530527;
acs 201; ce 183; pv Re5 Qd3 gxf3 Qd1+ Kg2 Rf8 f4 h6 Bxh6 Qc2 Re7 Rd8 Qe5+ Kc8
Qe2 Qf5;
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