[D]r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 10
Engines give close eval to Rxf3 and d5 (Stockfish favors sac, mystery engine prefers d5). The resulting positions are very different. Which move do you, as human, like more?
Interesting exchange sacrifice option
Moderators: hgm, Rebel, chrisw
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muxecoid
- Posts: 150
- Joined: Sat Jan 30, 2010 10:54 am
- Location: Israel
-
mhalstern
- Posts: 484
- Joined: Wed Nov 18, 2009 1:09 am
Re: Interesting exchange sacrifice option
Instinctively, I prefer the sac, but Zappa Mexico prefers d5:
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Zappa Mexico II 64:
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+ Kh8 5.Nxe5 Nxe5
= (-0.17) Depth: 9/24 00:00:00 329kN
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+ Kh8 5.Nxe5 Nxe5
= (-0.17) Depth: 9/26 00:00:00 858kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.a5 Nd7 5.f4
= (0.02) Depth: 10/28 00:00:00 1509kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.c5 Nxe2+ 5.Qxe2
=/+ (-0.31) Depth: 10/28 00:00:01 2103kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.c5 Nxe2+ 5.Qxe2
=/+ (-0.31) Depth: 10/28 00:00:01 2288kN
1...Rxf3 2.Bxf3 Nxd4 3.c5 Nxf3+ 4.Qxf3 Nc4 5.Rb1 Qd7 6.Bg5
=/+ (-0.27) Depth: 11/30 00:00:01 2863kN
1...Rxf3 2.Bxf3 Nxd4 3.c5 Nxf3+ 4.Qxf3 Nc4 5.Rb1 Qd7 6.Bg5
=/+ (-0.27) Depth: 11/30 00:00:01 3511kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Nc4 6.Re1
=/+ (-0.30) Depth: 12/30 00:00:02 4870kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Nc4 6.Re1
=/+ (-0.30) Depth: 12/31 00:00:02 6656kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 c5 6.Be3 Qd6
=/+ (-0.26) Depth: 13/31 00:00:03 7848kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 c5 6.Be3 Qd6
=/+ (-0.26) Depth: 13/39 00:00:04 12186kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nxf3+ 4.Qxf3 Qf8 5.Qg3 Be5 6.Qe3 Qg7 7.Bd2 Bd4
=/+ (-0.28) Depth: 14/39 00:00:06 17750kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nxf3+ 4.Qxf3 Qf8 5.Qg3 Be5 6.Qe3 Qg7 7.Bd2 Bd4
=/+ (-0.28) Depth: 14/39 00:00:08 24871kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Bf5 6.Be3 Bxd3 7.Qxd3 c5 8.Bxd4 Bxd4
=/+ (-0.28) Depth: 15/42 00:00:11 33706kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Bf5 6.Be3 Bxd3 7.Qxd3 c5 8.Bxd4 Bxd4
=/+ (-0.28) Depth: 15/42 00:00:15 43374kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Bd3 Be6 6.b3 Nd7 7.Ne4 Bf5 8.Re1 Bxe4 9.Bxe4
= (-0.16) Depth: 16/42 00:00:27 81330kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Bd3 Be6 6.b3 Nd7 7.Ne4 Bf5 8.Re1 Bxe4 9.Bxe4
= (-0.16) Depth: 16/46 00:01:12 212mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 Nxe2+ 5.Qxe2 Bd7 6.c5 Nd5 7.Nxd5 exd5 8.cxd6 exd6 9.Rfd1 Qf6
= (-0.15) Depth: 17/46 00:01:25 251mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Bf5 7.g4 Be6 8.Qd4+ Kg8 9.f5 gxf5 10.gxf5
= (-0.25) Depth: 17/46 00:02:04 366mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Bf5 7.g4 Be6 8.Qd4+ Kg8 9.f5 gxf5 10.gxf5
= (-0.25) Depth: 17/48 00:02:22 417mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Bf5 7.g4 Be6 8.Qd4+ Kf7 9.c5 dxc5 10.Qxc5
= (-0.23) Depth: 18/48 00:02:58 524mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Ne2 Qa5 7.Rb1 Qxc5 8.b4 Qb6
= (-0.24) Depth: 18/55 00:04:36 814mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Ne2 Qa5 7.Rb1 Qxc5 8.b4 Qb6
= (-0.24) Depth: 18/55 00:05:28 960mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Rb1 Qa5 7.b4 Qd8 8.b5 e5 9.bxc6 bxc6
= (-0.23) Depth: 19/55 00:06:29 1137mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Rb1 Qa5 7.b4 Qd8 8.b5 e5 9.bxc6 bxc6
= (-0.23) Depth: 19/55 00:07:50 1368mN
1...d5 2.c5 Nc4 3.Re1 b6 4.b3 bxc5 5.bxc4 cxd4 6.cxd5 dxc3 7.dxc6 Qxd1 8.Bxd1 c2 9.Ra2 cxd1Q 10.Rxd1 e5 11.Re1 Rb8 12.Nxe5 Rd8 13.Rd2 Rd6 14.Rxd6 exd6
=/+ (-0.32) Depth: 20/59 00:12:04 2107mN
1...d5 2.c5 Nc4 3.Re1 b6 4.b3 bxc5 5.bxc4 cxd4 6.cxd5 dxc3 7.dxc6 Qxd1 8.Bxd1 c2 9.Ra2 cxd1Q 10.Rxd1 e5 11.Re1 Rb8 12.Nxe5 Rd8 13.Rd2 Rd6 14.Rxd6 exd6
=/+ (-0.32) Depth: 20/59 00:13:28 2348mN
1...d5 2.c5 Nc4 3.b3 N4a5 4.Bg5 b6 5.cxb6 cxb6 6.Rb1 Bb7 7.b4 Nc4 8.Re1 Rc8 9.Kh1 h6 10.Bh4 g5 11.Bg3
=/+ (-0.44) Depth: 21/61 00:36:28 6443mN
1...d5 2.c5 Nc4 3.b3 N4a5 4.Bg5 b6 5.cxb6 cxb6 6.Rb1 Bb7 7.b4 Nc4 8.Re1 Rc8 9.Kh1 h6 10.Bh4 g5 11.Bg3
=/+ (-0.44) Depth: 21/61 00:38:48 6852mN
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Zappa Mexico II 64:
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+ Kh8 5.Nxe5 Nxe5
= (-0.17) Depth: 9/24 00:00:00 329kN
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+ Kh8 5.Nxe5 Nxe5
= (-0.17) Depth: 9/26 00:00:00 858kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.a5 Nd7 5.f4
= (0.02) Depth: 10/28 00:00:00 1509kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.c5 Nxe2+ 5.Qxe2
=/+ (-0.31) Depth: 10/28 00:00:01 2103kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.c5 Nxe2+ 5.Qxe2
=/+ (-0.31) Depth: 10/28 00:00:01 2288kN
1...Rxf3 2.Bxf3 Nxd4 3.c5 Nxf3+ 4.Qxf3 Nc4 5.Rb1 Qd7 6.Bg5
=/+ (-0.27) Depth: 11/30 00:00:01 2863kN
1...Rxf3 2.Bxf3 Nxd4 3.c5 Nxf3+ 4.Qxf3 Nc4 5.Rb1 Qd7 6.Bg5
=/+ (-0.27) Depth: 11/30 00:00:01 3511kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Nc4 6.Re1
=/+ (-0.30) Depth: 12/30 00:00:02 4870kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Nc4 6.Re1
=/+ (-0.30) Depth: 12/31 00:00:02 6656kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 c5 6.Be3 Qd6
=/+ (-0.26) Depth: 13/31 00:00:03 7848kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 c5 6.Be3 Qd6
=/+ (-0.26) Depth: 13/39 00:00:04 12186kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nxf3+ 4.Qxf3 Qf8 5.Qg3 Be5 6.Qe3 Qg7 7.Bd2 Bd4
=/+ (-0.28) Depth: 14/39 00:00:06 17750kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nxf3+ 4.Qxf3 Qf8 5.Qg3 Be5 6.Qe3 Qg7 7.Bd2 Bd4
=/+ (-0.28) Depth: 14/39 00:00:08 24871kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Bf5 6.Be3 Bxd3 7.Qxd3 c5 8.Bxd4 Bxd4
=/+ (-0.28) Depth: 15/42 00:00:11 33706kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 d5 4.cxd5 exd5 5.Bd3 Bf5 6.Be3 Bxd3 7.Qxd3 c5 8.Bxd4 Bxd4
=/+ (-0.28) Depth: 15/42 00:00:15 43374kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Bd3 Be6 6.b3 Nd7 7.Ne4 Bf5 8.Re1 Bxe4 9.Bxe4
= (-0.16) Depth: 16/42 00:00:27 81330kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Bd3 Be6 6.b3 Nd7 7.Ne4 Bf5 8.Re1 Bxe4 9.Bxe4
= (-0.16) Depth: 16/46 00:01:12 212mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 Nxe2+ 5.Qxe2 Bd7 6.c5 Nd5 7.Nxd5 exd5 8.cxd6 exd6 9.Rfd1 Qf6
= (-0.15) Depth: 17/46 00:01:25 251mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Bf5 7.g4 Be6 8.Qd4+ Kg8 9.f5 gxf5 10.gxf5
= (-0.25) Depth: 17/46 00:02:04 366mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Bf5 7.g4 Be6 8.Qd4+ Kg8 9.f5 gxf5 10.gxf5
= (-0.25) Depth: 17/48 00:02:22 417mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Bf5 7.g4 Be6 8.Qd4+ Kf7 9.c5 dxc5 10.Qxc5
= (-0.23) Depth: 18/48 00:02:58 524mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Ne2 Qa5 7.Rb1 Qxc5 8.b4 Qb6
= (-0.24) Depth: 18/55 00:04:36 814mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Ne2 Qa5 7.Rb1 Qxc5 8.b4 Qb6
= (-0.24) Depth: 18/55 00:05:28 960mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Rb1 Qa5 7.b4 Qd8 8.b5 e5 9.bxc6 bxc6
= (-0.23) Depth: 19/55 00:06:29 1137mN
1...d5 2.c5 Nc4 3.Re1 Rxf3 4.Bxf3 Nxd4 5.Bg4 c6 6.Rb1 Qa5 7.b4 Qd8 8.b5 e5 9.bxc6 bxc6
= (-0.23) Depth: 19/55 00:07:50 1368mN
1...d5 2.c5 Nc4 3.Re1 b6 4.b3 bxc5 5.bxc4 cxd4 6.cxd5 dxc3 7.dxc6 Qxd1 8.Bxd1 c2 9.Ra2 cxd1Q 10.Rxd1 e5 11.Re1 Rb8 12.Nxe5 Rd8 13.Rd2 Rd6 14.Rxd6 exd6
=/+ (-0.32) Depth: 20/59 00:12:04 2107mN
1...d5 2.c5 Nc4 3.Re1 b6 4.b3 bxc5 5.bxc4 cxd4 6.cxd5 dxc3 7.dxc6 Qxd1 8.Bxd1 c2 9.Ra2 cxd1Q 10.Rxd1 e5 11.Re1 Rb8 12.Nxe5 Rd8 13.Rd2 Rd6 14.Rxd6 exd6
=/+ (-0.32) Depth: 20/59 00:13:28 2348mN
1...d5 2.c5 Nc4 3.b3 N4a5 4.Bg5 b6 5.cxb6 cxb6 6.Rb1 Bb7 7.b4 Nc4 8.Re1 Rc8 9.Kh1 h6 10.Bh4 g5 11.Bg3
=/+ (-0.44) Depth: 21/61 00:36:28 6443mN
1...d5 2.c5 Nc4 3.b3 N4a5 4.Bg5 b6 5.cxb6 cxb6 6.Rb1 Bb7 7.b4 Nc4 8.Re1 Rc8 9.Kh1 h6 10.Bh4 g5 11.Bg3
=/+ (-0.44) Depth: 21/61 00:38:48 6852mN
-
mhalstern
- Posts: 484
- Joined: Wed Nov 18, 2009 1:09 am
Re: Interesting exchange sacrifice option
Critter decides on d5 after a half hour. Unfortunately for chess fans, the engine does not feel like sharing the line. Perhaps Richard Vita is taking programming lessons from vas?!
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Critter 0.80 64-bit:
1...e5 2.dxe5 Nxe5 3.a5 Nxf3+ 4.Bxf3 Bxc3 5.axb6
-/+ (-0.72) Depth: 6/9 00:00:00 4kN
1...e5 2.dxe5 Nxe5 3.a5 Nxf3+ 4.Bxf3 Nd7 5.Qd5+ Rf7
= (-0.03) Depth: 7/11 00:00:00 10kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Bxc3 5.bxc3 Nde5 6.f4
=/+ (-0.26) Depth: 7/11 00:00:00 27kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Bxc3 5.bxc3 Nde5 6.f4
=/+ (-0.26) Depth: 8/11 00:00:00 32kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.f4 Nb4 6.Qe4
=/+ (-0.37) Depth: 9/14 00:00:00 48kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.f4 Nb4 6.Qe4
=/+ (-0.26 --) Depth: 10/19 00:00:00 173kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.f4 Nb4 6.Qe4
=/+ (-0.49 !) Depth: 10/19 00:00:00 203kN
1...a5 2.Nb5 e5 3.c5 dxc5 4.dxc5 Nd5 5.Bc4 e6 6.Bg5
=/+ (-0.47) Depth: 10/23 00:00:00 389kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.Be3 Nb4 6.Qe4 Nf7 7.Nxf7+ Rxf7 8.c5 Bxc3 9.bxc3
=/+ (-0.49) Depth: 11/25 00:00:00 700kN
1...Nd7 2.a5 e5 3.d5 Nd4 4.Nxd4 exd4 5.Nb5 Nc5 6.a6 Nxa6 7.Nxd4 Nb4 8.Bf3 Be5 9.Be3 a5 10.Qd2
=/+ (-0.50) Depth: 12/25 00:00:00 1017kN
1...Nd7 2.Be3 e5 3.d5 Nb4 4.Qb3 a5 5.Ng5 Nf6 6.h3 Bf5 7.Ne6 Bxe6 8.dxe6 Qc8 9.Nd5 Qxe6 10.Nxc7
=/+ (-0.58) Depth: 13/30 00:00:00 1734kN
1...Nd7 2.Be3 e5 3.d5 Nb4 4.Qb3 a5 5.Ng5 Nf6 6.h3 Bf5 7.Ne6 Bxe6 8.dxe6 Qc8 9.Nd5 Qxe6 10.Nxc7
=/+ (-0.46 --) Depth: 14/31 00:00:00 4067kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.Qd2 c6 7.Rfd1 Nd7 8.Ne4 Nf6 9.Qd4 Bf5 10.Ng5 Kh8
=/+ (-0.55) Depth: 14/31 00:00:01 5780kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.Qd2 c6 7.a5 Nd7 8.b4 Nf6 9.Rfe1 Bf5 10.Rad1 b6 11.a6 Qd7 12.Bf3 Kg8 13.h3
=/+ (-0.61) Depth: 15/37 00:00:01 7705kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Qd2 Nd7 6.Bxg7 Kxg7 7.Rad1 a5 8.Qg5 Nc5 9.Nd5 Nxa4 10.Nxe7 Nxb2 11.Rd2 Rf7
=/+ (-0.63) Depth: 16/41 00:00:02 13703kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Nd7 7.Qd4+ Nf6 8.b4 a5 9.b5 Kg8 10.Bf3 e6 11.c5 dxc5 12.Qxc5 Qd6 13.Qc4
=/+ (-0.61) Depth: 17/41 00:00:04 19891kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 cxd6 8.Rc1 Ne5 9.Nd5 Nc6 10.Qd2 e6 11.Nb4 Qa5 12.Qc3+ Ne5 13.Qd4 Qb6
=/+ (-0.61) Depth: 18/44 00:00:06 33297kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 cxd6 8.Rc1 Ne5 9.Nd5 Nc6 10.Qd2 e6 11.Nb4 Qa5 12.Qc3+ Ne5 13.Qd4 Qb6
=/+ (-0.50 --) Depth: 19/51 00:00:14 76136kN
1...e5 2.dxe5 Nxe5 3.c5 Nbd7 4.cxd6 cxd6 5.Ng5 Nc5 6.Be3 h6
=/+ (-0.60) Depth: 19/55 00:00:24 127mN
1...e5 2.dxe5 Nxe5 3.Ng5 a5 4.f4 Nf7 5.Nxf7 Kxf7 6.Be3 Kg8 7.Qb3 e6 8.Ne4 Nd7 9.Bf3 Qe7
=/+ (-0.62) Depth: 20/55 00:00:46 247mN
1...e5 2.dxe5 Nxe5 3.Ng5 a5 4.f4 Nf7 5.Nxf7 Kxf7 6.Be3 Kg8 7.Qb3 e6 8.Ne4 Nd7 9.Bf3 Qe7
=/+ (-0.50 --) Depth: 21/55 00:01:01 325mN
1...e5 2.dxe5 Nxe5 3.Ng5 a5 4.f4 Nf7 5.Nxf7 Kxf7 6.Be3 Kg8 7.Qb3 e6 8.Ne4 Nd7 9.Bf3 Qe7
=/+ (-0.39 --) Depth: 21/55 00:02:29 803mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Qf6 9.Qd2 Nc5 10.Nd5 Qf7 11.b4 Ne4 12.Qd4+ Nf6 13.Nf4 d5 14.Rae1 c6 15.f3 Kg8 16.Bd3 Ne8 17.g3 Nf6 18.Re2 g5 19.Ng2 Re8 20.Rxe8+ Nxe8
=/+ (-0.43) Depth: 21/55 00:02:39 856mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Qf6 9.Qd2 Nc5 10.Nd5 Qf7 11.b4 Ne4 12.Qd4+ Nf6 13.Nf4 d5 14.b5 Kg8 15.Bf3 c6 16.Rac1 Qd7 17.Rfe1 Qd6 18.h3 Bf5 19.bxc6 bxc6
=/+ (-0.39) Depth: 22/55 00:03:02 980mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Nf6 9.Rad1 Re8 10.Rfe1 Be6 11.Bf3 c5 12.Qxd6 Bb3 13.Qxd8 Raxd8 14.Rc1 b6 15.a5 bxa5 16.Ra1 a4 17.Rxe8
=/+ (-0.43) Depth: 23/55 00:03:51 1273mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Qf6 9.Qd2 Nc5 10.Nd5 Qf7 11.b4 Ne4 12.Qd4+ Nf6 13.Nf4 d5 14.Rfe1 Kg8 15.Rad1 c6 16.f3 Re8 17.Bd3 Rxe1+ 18.Rxe1 Bd7 19.b5
=/+ (-0.50) Depth: 24/63 00:06:16 2152mN
1...d5 2.c5
=/+ (-0.56) Depth: 25/65 00:30:27 10830mN
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Critter 0.80 64-bit:
1...e5 2.dxe5 Nxe5 3.a5 Nxf3+ 4.Bxf3 Bxc3 5.axb6
-/+ (-0.72) Depth: 6/9 00:00:00 4kN
1...e5 2.dxe5 Nxe5 3.a5 Nxf3+ 4.Bxf3 Nd7 5.Qd5+ Rf7
= (-0.03) Depth: 7/11 00:00:00 10kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Bxc3 5.bxc3 Nde5 6.f4
=/+ (-0.26) Depth: 7/11 00:00:00 27kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Bxc3 5.bxc3 Nde5 6.f4
=/+ (-0.26) Depth: 8/11 00:00:00 32kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.f4 Nb4 6.Qe4
=/+ (-0.37) Depth: 9/14 00:00:00 48kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.f4 Nb4 6.Qe4
=/+ (-0.26 --) Depth: 10/19 00:00:00 173kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.f4 Nb4 6.Qe4
=/+ (-0.49 !) Depth: 10/19 00:00:00 203kN
1...a5 2.Nb5 e5 3.c5 dxc5 4.dxc5 Nd5 5.Bc4 e6 6.Bg5
=/+ (-0.47) Depth: 10/23 00:00:00 389kN
1...Nd7 2.d5 exd5 3.Qxd5+ Kh8 4.Ng5 Nde5 5.Be3 Nb4 6.Qe4 Nf7 7.Nxf7+ Rxf7 8.c5 Bxc3 9.bxc3
=/+ (-0.49) Depth: 11/25 00:00:00 700kN
1...Nd7 2.a5 e5 3.d5 Nd4 4.Nxd4 exd4 5.Nb5 Nc5 6.a6 Nxa6 7.Nxd4 Nb4 8.Bf3 Be5 9.Be3 a5 10.Qd2
=/+ (-0.50) Depth: 12/25 00:00:00 1017kN
1...Nd7 2.Be3 e5 3.d5 Nb4 4.Qb3 a5 5.Ng5 Nf6 6.h3 Bf5 7.Ne6 Bxe6 8.dxe6 Qc8 9.Nd5 Qxe6 10.Nxc7
=/+ (-0.58) Depth: 13/30 00:00:00 1734kN
1...Nd7 2.Be3 e5 3.d5 Nb4 4.Qb3 a5 5.Ng5 Nf6 6.h3 Bf5 7.Ne6 Bxe6 8.dxe6 Qc8 9.Nd5 Qxe6 10.Nxc7
=/+ (-0.46 --) Depth: 14/31 00:00:00 4067kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.Qd2 c6 7.Rfd1 Nd7 8.Ne4 Nf6 9.Qd4 Bf5 10.Ng5 Kh8
=/+ (-0.55) Depth: 14/31 00:00:01 5780kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.Qd2 c6 7.a5 Nd7 8.b4 Nf6 9.Rfe1 Bf5 10.Rad1 b6 11.a6 Qd7 12.Bf3 Kg8 13.h3
=/+ (-0.61) Depth: 15/37 00:00:01 7705kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Qd2 Nd7 6.Bxg7 Kxg7 7.Rad1 a5 8.Qg5 Nc5 9.Nd5 Nxa4 10.Nxe7 Nxb2 11.Rd2 Rf7
=/+ (-0.63) Depth: 16/41 00:00:02 13703kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.f4 Nd7 7.Qd4+ Nf6 8.b4 a5 9.b5 Kg8 10.Bf3 e6 11.c5 dxc5 12.Qxc5 Qd6 13.Qc4
=/+ (-0.61) Depth: 17/41 00:00:04 19891kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 cxd6 8.Rc1 Ne5 9.Nd5 Nc6 10.Qd2 e6 11.Nb4 Qa5 12.Qc3+ Ne5 13.Qd4 Qb6
=/+ (-0.61) Depth: 18/44 00:00:06 33297kN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 cxd6 8.Rc1 Ne5 9.Nd5 Nc6 10.Qd2 e6 11.Nb4 Qa5 12.Qc3+ Ne5 13.Qd4 Qb6
=/+ (-0.50 --) Depth: 19/51 00:00:14 76136kN
1...e5 2.dxe5 Nxe5 3.c5 Nbd7 4.cxd6 cxd6 5.Ng5 Nc5 6.Be3 h6
=/+ (-0.60) Depth: 19/55 00:00:24 127mN
1...e5 2.dxe5 Nxe5 3.Ng5 a5 4.f4 Nf7 5.Nxf7 Kxf7 6.Be3 Kg8 7.Qb3 e6 8.Ne4 Nd7 9.Bf3 Qe7
=/+ (-0.62) Depth: 20/55 00:00:46 247mN
1...e5 2.dxe5 Nxe5 3.Ng5 a5 4.f4 Nf7 5.Nxf7 Kxf7 6.Be3 Kg8 7.Qb3 e6 8.Ne4 Nd7 9.Bf3 Qe7
=/+ (-0.50 --) Depth: 21/55 00:01:01 325mN
1...e5 2.dxe5 Nxe5 3.Ng5 a5 4.f4 Nf7 5.Nxf7 Kxf7 6.Be3 Kg8 7.Qb3 e6 8.Ne4 Nd7 9.Bf3 Qe7
=/+ (-0.39 --) Depth: 21/55 00:02:29 803mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Qf6 9.Qd2 Nc5 10.Nd5 Qf7 11.b4 Ne4 12.Qd4+ Nf6 13.Nf4 d5 14.Rae1 c6 15.f3 Kg8 16.Bd3 Ne8 17.g3 Nf6 18.Re2 g5 19.Ng2 Re8 20.Rxe8+ Nxe8
=/+ (-0.43) Depth: 21/55 00:02:39 856mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Qf6 9.Qd2 Nc5 10.Nd5 Qf7 11.b4 Ne4 12.Qd4+ Nf6 13.Nf4 d5 14.b5 Kg8 15.Bf3 c6 16.Rac1 Qd7 17.Rfe1 Qd6 18.h3 Bf5 19.bxc6 bxc6
=/+ (-0.39) Depth: 22/55 00:03:02 980mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Nf6 9.Rad1 Re8 10.Rfe1 Be6 11.Bf3 c5 12.Qxd6 Bb3 13.Qxd8 Raxd8 14.Rc1 b6 15.a5 bxa5 16.Ra1 a4 17.Rxe8
=/+ (-0.43) Depth: 23/55 00:03:51 1273mN
1...e5 2.dxe5 Nxe5 3.Nxe5 Bxe5 4.Bh6 Bg7 5.Bxg7 Kxg7 6.c5 Nd7 7.cxd6 exd6 8.Qd4+ Qf6 9.Qd2 Nc5 10.Nd5 Qf7 11.b4 Ne4 12.Qd4+ Nf6 13.Nf4 d5 14.Rfe1 Kg8 15.Rad1 c6 16.f3 Re8 17.Bd3 Rxe1+ 18.Rxe1 Bd7 19.b5
=/+ (-0.50) Depth: 24/63 00:06:16 2152mN
1...d5 2.c5
=/+ (-0.56) Depth: 25/65 00:30:27 10830mN
-
gerold
- Posts: 10121
- Joined: Thu Mar 09, 2006 12:57 am
- Location: van buren,missouri
Re: Interesting exchange sacrifice option
I would have to play d5.
Good control of the middle and still have my Rook.
Good control of the middle and still have my Rook.
-
Peter Marriott
- Posts: 26
- Joined: Mon May 03, 2010 7:22 am
Re: Interesting exchange sacrifice option
Same here.
-
De Vos W
- Posts: 431
- Joined: Tue Dec 01, 2009 11:59 am
Re: Interesting exchange sacrifice option
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b
Analysis by FireBird 1.1 w32:
1...Rxf3 2.Bxf3 Nxc4
=/+ (-0.35 ++) Depth: 12 00:00:00 672kN
1...Rxf3 2.Bxf3 Nxc4
=/+ (-0.35 ++) Depth: 12 00:00:00 672kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Bc6 7.Nb5 Nxe2+ 8.Qxe2 Nd7 9.f3
=/+ (-0.39) Depth: 12 00:00:00 767kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Bc6 7.Nb5 Nxe2+ 8.Qxe2 Nd7 9.f3
=/+ (-0.39) Depth: 12 00:00:00 800kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Qf8 7.Nb5 Nxe2+ 8.Qxe2 Qf5 9.f3 Rf8 10.Bd2
=/+ (-0.38) Depth: 13 00:00:00 1023kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Qf8 7.Nb5 Nxe2+ 8.Qxe2 Qf5 9.f3 Rf8 10.Bd2
=/+ (-0.38) Depth: 13 00:00:00 1164kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4
=/+ (-0.40) Depth: 14 00:00:01 1709kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4
=/+ (-0.40) Depth: 14 00:00:01 1866kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4 Qc6 11.Bxe6+ Qxe6 12.fxe5 Bxe5
=/+ (-0.36) Depth: 15 00:00:01 2454kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4 Qc6 11.Bxe6+ Qxe6 12.fxe5 Bxe5
=/+ (-0.36) Depth: 15 00:00:02 3082kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 16 00:00:03 5571kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 16 00:00:03 6084kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 17 00:00:05 8329kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 17 00:00:05 9198kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 18 00:00:06 11206kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 18 00:00:08 13275kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.Rad1 Nd7 9.f3 Nf6 10.Bf2 Qc7 11.Ne4 Rf8 12.Ng5 Nd7
=/+ (-0.36) Depth: 19 00:00:31 53107kN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Bf5 5.Bh6 Bxh6 6.Qxh6 e6 7.Rfc1 Qe7 8.Nb5 Be4 9.Ng5 Rf5 10.Nxe4 dxe4 11.Bg4 Rff8 12.Qe3
=/+ (-0.48) Depth: 19 00:01:22 142mN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Bf5 5.Bh6 Bxh6 6.Qxh6 e6 7.Rfc1 Qe7 8.Nb5 Be4 9.Ng5 Rf5 10.Nxe4 dxe4 11.Bg4 Rff8 12.Qe3
=/+ (-0.48) Depth: 19 00:01:23 143mN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Nb4 5.b3 Bf5 6.Rfc1 c6 7.Na2 Nxa2 8.Rxa2 Nd7 9.b4 Nf6 10.Ne5 Qb6 11.b5 Ne4 12.Qb2
=/+ (-0.46) Depth: 20 00:01:44 180mN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Nb4 5.b3 Bf5 6.Rfc1 c6 7.Na2 Nxa2 8.Rxa2 Nd7 9.b4 Nf6 10.Ne5 Qb6 11.b5 Ne4 12.Qb2
=/+ (-0.46) Depth: 20 00:01:48 187mN
(08.10.2010)
Analysis by FireBird 1.1 w32:
1...Rxf3 2.Bxf3 Nxc4
=/+ (-0.35 ++) Depth: 12 00:00:00 672kN
1...Rxf3 2.Bxf3 Nxc4
=/+ (-0.35 ++) Depth: 12 00:00:00 672kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Bc6 7.Nb5 Nxe2+ 8.Qxe2 Nd7 9.f3
=/+ (-0.39) Depth: 12 00:00:00 767kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Bc6 7.Nb5 Nxe2+ 8.Qxe2 Nd7 9.f3
=/+ (-0.39) Depth: 12 00:00:00 800kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Qf8 7.Nb5 Nxe2+ 8.Qxe2 Qf5 9.f3 Rf8 10.Bd2
=/+ (-0.38) Depth: 13 00:00:00 1023kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 c5 5.Rc1 Bd7 6.b3 Qf8 7.Nb5 Nxe2+ 8.Qxe2 Qf5 9.f3 Rf8 10.Bd2
=/+ (-0.38) Depth: 13 00:00:00 1164kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4
=/+ (-0.40) Depth: 14 00:00:01 1709kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4
=/+ (-0.40) Depth: 14 00:00:01 1866kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4 Qc6 11.Bxe6+ Qxe6 12.fxe5 Bxe5
=/+ (-0.36) Depth: 15 00:00:01 2454kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.f4 c5 6.Bd3 Be6 7.b3 d5 8.cxd5 Nxd5 9.Nxd5 Qxd5 10.Bc4 Qc6 11.Bxe6+ Qxe6 12.fxe5 Bxe5
=/+ (-0.36) Depth: 15 00:00:02 3082kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 16 00:00:03 5571kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 16 00:00:03 6084kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 17 00:00:05 8329kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 17 00:00:05 9198kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 18 00:00:06 11206kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.g4 Be6 9.b3 Nd7 10.Ne4 Nf6 11.f3 Qd7 12.Ng5
=/+ (-0.43) Depth: 18 00:00:08 13275kN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 Nxe2+ 6.Qxe2 c6 7.Nc3 Bf5 8.Rad1 Nd7 9.f3 Nf6 10.Bf2 Qc7 11.Ne4 Rf8 12.Ng5 Nd7
=/+ (-0.36) Depth: 19 00:00:31 53107kN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Bf5 5.Bh6 Bxh6 6.Qxh6 e6 7.Rfc1 Qe7 8.Nb5 Be4 9.Ng5 Rf5 10.Nxe4 dxe4 11.Bg4 Rff8 12.Qe3
=/+ (-0.48) Depth: 19 00:01:22 142mN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Bf5 5.Bh6 Bxh6 6.Qxh6 e6 7.Rfc1 Qe7 8.Nb5 Be4 9.Ng5 Rf5 10.Nxe4 dxe4 11.Bg4 Rff8 12.Qe3
=/+ (-0.48) Depth: 19 00:01:23 143mN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Nb4 5.b3 Bf5 6.Rfc1 c6 7.Na2 Nxa2 8.Rxa2 Nd7 9.b4 Nf6 10.Ne5 Qb6 11.b5 Ne4 12.Qb2
=/+ (-0.46) Depth: 20 00:01:44 180mN
1...d5 2.cxd5 exd5 3.Be3 a5 4.Qd2 Nb4 5.b3 Bf5 6.Rfc1 c6 7.Na2 Nxa2 8.Rxa2 Nd7 9.b4 Nf6 10.Ne5 Qb6 11.b5 Ne4 12.Qb2
=/+ (-0.46) Depth: 20 00:01:48 187mN
(08.10.2010)
Gods are fragile things; they may be killed by a whiff of science or a dose of common sense.
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: Interesting exchange sacrifice option
FEN: r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 10
Houdini_w32_1CPU:
4/18 00:00 1.600 320.000 +0.34 e6e5 Bc1e3 Bc8f5 a4a5
5/20 00:00 3.492 205.000 +0.27 e6e5 Bc1e3 Bc8f5 a4a5 e5xd4 Nf3xd4 Nc6xd4 Be3xd4
6/23 00:00 8.290 218.000 +0.28 e6e5 Bc1e3 Rf8xf3 Be2xf3 e5xd4 Bf3xc6 d4xe3 Bc6d5+ e7e6
7/26 00:00 20.141 291.000 +0.24 a7a5 b2b3 e6e5 Bc1e3 e5xd4 Nf3xd4 d6d5 Ra1c1 Nc6xd4 Be3xd4 d5xc4 Bd4xb6 c7xb6 Be2xc4+ e7e6
8/26 00:00 35.460 264.000 +0.28 a7a5 b2b3 Nc6b4 Rf1e1 Bc8d7 Be2f1 c7c5 Nc3b5
9/26 00:00 45.164 258.000 +0.28 a7a5 b2b3 Nc6b4 Bc1e3 Bc8d7 Qd1d2 Bd7c6 Be3h6 Nb6d7 Bh6xg7 Kg8xg7
10/27 00:00 81.945 303.000 +0.28 a7a5 Bc1e3 Nc6b4 Qd1d2 Bc8d7 b2b3 Bd7c6 Be3h6 Nb6d7 Bh6xg7 Kg8xg7
11/27 00:00 314.173 345.000 +0.28 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1a2 Qd8f8 Bf3g4 Nd7c5 b3b4 Nc5b3 Bc1e3 Bc8d7
12/33 00:01 446.492 353.000 +0.24 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1a2 c7c6 a4a5 d6d5 a5a6 Qd8c7 Rf1e1 Nd7c5 a6xb7 Bc8xb7 b3b4 Ra8f8
13/33+ 00:02 889.683 357.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 f2f4 Bc8e6 b2b3 Nd4f5 Qd1d2 Nf5xe3 Qd2xe3 Nb6d7 Ra1d1 Nd7c5 Nc3e4
13/33 00:02 973.720 356.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 c7c5 Ra1c1 Bc8d7 b2b3 Qd8f8 Nc3b5 Nd4xe2+ Qd1xe2 Qf8f5 f2f3
14/34 00:11 3.970.858 363.000 +0.27 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bc1e3 c7c6 Bf3g4 Nd7c5 Bg4xc8 Ra8xc8 f2f4 a7a5 f4xe5 d6xe5 b3b4 a5xb4 Rb1xb4
15/34 00:13 4.821.382 365.000 +0.24 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bf3g4 Nd7f6 Bg4xc8 Qd8xc8 f2f4 Qc8f5 f4xe5 Qf5xe5 Bc1f4 Qe5c5 Bf4e3 e7e5 Nc3b5 Nf6e4 Nb5xd4 e5xd4
16/34+ 00:18 6.667.688 354.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bf3g4 Nd7f6 Bg4xc8 Qd8xc8 f2f4 Qc8f5 f4xe5 Qf5xe5 Rf1e1 Qe5c5 Bc1e3 e7e5 Nc3b5 Nf6d7 Be3xd4 e5xd4 Qd1d3 Ra8f8 Re1e7
16/37 00:21 7.516.113 352.000 +0.29 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bf3g4 Nd7f6 Bg4xc8 Qd8xc8 f2f4 Qc8e6 f4xe5 d6xe5 Nc3b5 Ra8d8 Rb1b2 Qe6b6 Bc1e3 c7c5 Rb2d2 Nf6e4
17/38 00:38 12.865.291 334.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 g2g4 Bf5e6 Nc3e4 Qd8d7 Ne4g5 Ra8f8 Ng5xe6 Qd7xe6
18/38 00:52 18.177.094 344.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 g2g4 Bf5e6 Nc3e4 Qd8d7 Ne4g5 Ra8f8 Ng5xe6 Qd7xe6
19/39 01:15 26.750.826 356.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 g2g4 Bf5e6 Nc3e4 Qd8d7 Ne4g5 Ra8f8 Ng5xe6 Qd7xe6
20/44 02:18 51.514.037 373.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 b2b3 Qd8c7 Be3f2 Ra8f8 Nc3e4 Nf6xe4 f3xe4 Bf5e6 Bf2e3
21/53 04:22 98.812.649 376.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 b2b3 Qd8c7 g2g4 Bf5e6 Nc3e4 Ra8f8
22/53 13:41 270.386.939 329.000 +0.27 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 b2b3 Nb6d7 f2f3 Nd7f6 Ra1d1 Qd8c7 Qe2f2 Qc7d7 Be3b6 Qd7e6 Rf1e1
22/54 25:58 540.763.523 346.000 +0.30 d6d5 c4c5 Nb6c4 Be2xc4 d5xc4 Bc1e3 e6e5 Nf3xe5 Nc6xe5 d4xe5 Bc8f5 f2f4 Bf5d3 Rf1f2 Qd8d7 Qd1f3 c7c6 Qf3g3 Ra8d8 Qg3h4 Rf8f7 Rf2d2 Qd7f5 Kg1h1 g6g5 f4xg5 Bg7xe5 Ra1d1
23/61+ 1:04:30 1.335.360.017 345.000 +0.37 d6d5 c4c5 Nb6c4 Be2xc4 d5xc4 Bc1e3 e6e5 Nf3xe5 Nc6xe5 d4xe5 Bc8f5 f2f4 Bf5d3 Rf1f2 Qd8d7 Qd1f3 c7c6 Qf3g3 Ra8d8 Ra1d1 Qd7f5 Kg1h1 Bd3c2 Rd1xd8 Rf8xd8
Houdini_w32_1CPU:
4/18 00:00 1.600 320.000 +0.34 e6e5 Bc1e3 Bc8f5 a4a5
5/20 00:00 3.492 205.000 +0.27 e6e5 Bc1e3 Bc8f5 a4a5 e5xd4 Nf3xd4 Nc6xd4 Be3xd4
6/23 00:00 8.290 218.000 +0.28 e6e5 Bc1e3 Rf8xf3 Be2xf3 e5xd4 Bf3xc6 d4xe3 Bc6d5+ e7e6
7/26 00:00 20.141 291.000 +0.24 a7a5 b2b3 e6e5 Bc1e3 e5xd4 Nf3xd4 d6d5 Ra1c1 Nc6xd4 Be3xd4 d5xc4 Bd4xb6 c7xb6 Be2xc4+ e7e6
8/26 00:00 35.460 264.000 +0.28 a7a5 b2b3 Nc6b4 Rf1e1 Bc8d7 Be2f1 c7c5 Nc3b5
9/26 00:00 45.164 258.000 +0.28 a7a5 b2b3 Nc6b4 Bc1e3 Bc8d7 Qd1d2 Bd7c6 Be3h6 Nb6d7 Bh6xg7 Kg8xg7
10/27 00:00 81.945 303.000 +0.28 a7a5 Bc1e3 Nc6b4 Qd1d2 Bc8d7 b2b3 Bd7c6 Be3h6 Nb6d7 Bh6xg7 Kg8xg7
11/27 00:00 314.173 345.000 +0.28 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1a2 Qd8f8 Bf3g4 Nd7c5 b3b4 Nc5b3 Bc1e3 Bc8d7
12/33 00:01 446.492 353.000 +0.24 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1a2 c7c6 a4a5 d6d5 a5a6 Qd8c7 Rf1e1 Nd7c5 a6xb7 Bc8xb7 b3b4 Ra8f8
13/33+ 00:02 889.683 357.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 f2f4 Bc8e6 b2b3 Nd4f5 Qd1d2 Nf5xe3 Qd2xe3 Nb6d7 Ra1d1 Nd7c5 Nc3e4
13/33 00:02 973.720 356.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 c7c5 Ra1c1 Bc8d7 b2b3 Qd8f8 Nc3b5 Nd4xe2+ Qd1xe2 Qf8f5 f2f3
14/34 00:11 3.970.858 363.000 +0.27 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bc1e3 c7c6 Bf3g4 Nd7c5 Bg4xc8 Ra8xc8 f2f4 a7a5 f4xe5 d6xe5 b3b4 a5xb4 Rb1xb4
15/34 00:13 4.821.382 365.000 +0.24 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bf3g4 Nd7f6 Bg4xc8 Qd8xc8 f2f4 Qc8f5 f4xe5 Qf5xe5 Bc1f4 Qe5c5 Bf4e3 e7e5 Nc3b5 Nf6e4 Nb5xd4 e5xd4
16/34+ 00:18 6.667.688 354.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bf3g4 Nd7f6 Bg4xc8 Qd8xc8 f2f4 Qc8f5 f4xe5 Qf5xe5 Rf1e1 Qe5c5 Bc1e3 e7e5 Nc3b5 Nf6d7 Be3xd4 e5xd4 Qd1d3 Ra8f8 Re1e7
16/37 00:21 7.516.113 352.000 +0.29 Rf8xf3 Be2xf3 Nc6xd4 b2b3 Nb6d7 Ra1b1 e6e5 Bf3g4 Nd7f6 Bg4xc8 Qd8xc8 f2f4 Qc8e6 f4xe5 d6xe5 Nc3b5 Ra8d8 Rb1b2 Qe6b6 Bc1e3 c7c5 Rb2d2 Nf6e4
17/38 00:38 12.865.291 334.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 g2g4 Bf5e6 Nc3e4 Qd8d7 Ne4g5 Ra8f8 Ng5xe6 Qd7xe6
18/38 00:52 18.177.094 344.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 g2g4 Bf5e6 Nc3e4 Qd8d7 Ne4g5 Ra8f8 Ng5xe6 Qd7xe6
19/39 01:15 26.750.826 356.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 g2g4 Bf5e6 Nc3e4 Qd8d7 Ne4g5 Ra8f8 Ng5xe6 Qd7xe6
20/44 02:18 51.514.037 373.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 b2b3 Qd8c7 Be3f2 Ra8f8 Nc3e4 Nf6xe4 f3xe4 Bf5e6 Bf2e3
21/53 04:22 98.812.649 376.000 +0.30 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 Ra1c1 Nb6d7 f2f3 Nd7f6 b2b3 Qd8c7 g2g4 Bf5e6 Nc3e4 Ra8f8
22/53 13:41 270.386.939 329.000 +0.27 Rf8xf3 Be2xf3 Nc6xd4 Bf3e2 a7a5 Bc1e3 e6e5 Nc3b5 Nd4xe2+ Qd1xe2 c7c6 Nb5c3 Bc8f5 b2b3 Nb6d7 f2f3 Nd7f6 Ra1d1 Qd8c7 Qe2f2 Qc7d7 Be3b6 Qd7e6 Rf1e1
22/54 25:58 540.763.523 346.000 +0.30 d6d5 c4c5 Nb6c4 Be2xc4 d5xc4 Bc1e3 e6e5 Nf3xe5 Nc6xe5 d4xe5 Bc8f5 f2f4 Bf5d3 Rf1f2 Qd8d7 Qd1f3 c7c6 Qf3g3 Ra8d8 Qg3h4 Rf8f7 Rf2d2 Qd7f5 Kg1h1 g6g5 f4xg5 Bg7xe5 Ra1d1
23/61+ 1:04:30 1.335.360.017 345.000 +0.37 d6d5 c4c5 Nb6c4 Be2xc4 d5xc4 Bc1e3 e6e5 Nf3xe5 Nc6xe5 d4xe5 Bc8f5 f2f4 Bf5d3 Rf1f2 Qd8d7 Qd1f3 c7c6 Qf3g3 Ra8d8 Ra1d1 Qd7f5 Kg1h1 Bd3c2 Rd1xd8 Rf8xd8
-
mhalstern
- Posts: 484
- Joined: Wed Nov 18, 2009 1:09 am
Re: Interesting exchange sacrifice option
The Exchange Sac must be good as well, as Naum 4.2 likes it after 3 hours and 45 minutes:
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Naum 4.2:
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+
+/= (0.32) Depth: 6/20 00:00:00 15kN
1...Bd7 2.a5 Nc8 3.Bg5 Rf5 4.d5
= (0.18) Depth: 6/20 00:00:00 16kN
1...a5 2.Bg5 Bd7 3.Qd3 e5 4.d5
=/+ (-0.38) Depth: 6/20 00:00:00 22kN
1...a5 2.Bg5 Bd7 3.Ne4 d5 4.cxd5 Nxd5
=/+ (-0.35) Depth: 7/20 00:00:00 25kN
1...a5 2.Be3 Bd7 3.Qb3 Nb4 4.Ne4 d5 5.cxd5
=/+ (-0.42) Depth: 8/24 00:00:00 40kN
1...a5 2.Be3 Bd7 3.Qb3 Nb4 4.Ng5 Rf5 5.Nce4
=/+ (-0.32) Depth: 9/24 00:00:00 75kN
1...a5 2.Be3 Bd7 3.Qb3 Rf5 4.d5 Nb4 5.Nd4 Bxd4 6.Bxd4
=/+ (-0.27) Depth: 10/25 00:00:00 106kN
1...Rxf3
=/+ (-0.28) Depth: 11/27 00:00:00 553kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Be4 d5 5.Bd3 Qd6 6.Ba3 c5
=/+ (-0.37) Depth: 11/27 00:00:00 689kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Ba3 Nxf3+ 5.Qxf3 Qf8 6.Qxf8+ Kxf8 7.Rac1
=/+ (-0.30) Depth: 12/30 00:00:00 1563kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Ba3 Nxf3+ 5.Qxf3 Qf8 6.Qxf8+ Kxf8 7.Rac1 Bd7
=/+ (-0.30) Depth: 13/25 00:00:00 1741kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Bg5 a5 5.Ra3 Nxf3+ 6.Qxf3 Ne5 7.Qe4 Bd7 8.f4
=/+ (-0.33) Depth: 14/31 00:00:00 3543kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Bg5 a5 5.Ra3 c6 6.Re1 h6 7.Bd2 Ne5 8.Be4 d5
=/+ (-0.29) Depth: 15/34 00:00:01 5758kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 Nf7 9.Bf4
=/+ (-0.27) Depth: 16/39 00:00:04 26033kN
1...d5
=/+ (-0.28) Depth: 16/39 00:00:05 32402kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 Nf7 9.Bf4
=/+ (-0.27) Depth: 16/49 00:00:05 34584kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 h6 9.Be3 Nec6
=/+ (-0.32) Depth: 17/39 00:00:07 44792kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bc3
=/+ (-0.35) Depth: 18/43 00:00:15 97173kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bc3 Nb4
=/+ (-0.35) Depth: 19/42 00:00:17 110mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 a5 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bg4 Nb4 11.Rf2
=/+ (-0.38) Depth: 20/47 00:00:26 168mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Nec6 8.Nxd4 Nxd4 9.Be3 e5 10.Bxc8 Qxc8 11.Bxd4 exd4
=/+ (-0.34) Depth: 21/46 00:00:46 308mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c5 5.Bg5 Nxf3+ 6.Qxf3 Ne5 7.Qg3 Bd7 8.Ne4 Nc6 9.Qh4 Qf8 10.Rfd1 h6 11.Be3 Nd4 12.f3
=/+ (-0.34) Depth: 22/55 00:02:21 959mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c5 5.Bg5 Nxf3+ 6.Qxf3 Ne5 7.Qg3 Bd7 8.Ne4 Nc6 9.Qh4 Qf8 10.Rfd1 h6 11.Be3
=/+ (-0.34) Depth: 23/52 00:03:53 1585mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Bd3 Bd7 7.f3 Bc6 8.Ra3 e6 9.b3 d5 10.Qb1 Bf6 11.Qe1
=/+ (-0.38) Depth: 24/55 00:09:17 3795mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Bd3 Bd7 7.f3 Bc6 8.Ra3 d5 9.cxd5 Nxd5 10.Bg5 Qb6 11.Bc4 e6 12.Re1 h6 13.Be3 Rf8
=/+ (-0.37) Depth: 25/55 00:12:47 5277mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Be6 7.b3 d5 8.cxd5 Bxd5 9.Rb1 Qd7 10.Nc3 Bc6 11.h4 e6 12.h5 Nd5 13.Nxd5 Qxd5 14.Bf1
=/+ (-0.38) Depth: 26/60 00:23:55 9863mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Re1 Be6 6.b3 Nd7 7.Rb1 Bf5 8.Bd3 Bxd3 9.Qxd3 Nc5 10.Qd1 c6 11.Qg4 Bf6 12.Ne4 Nxe4 13.Qxe4 Qd7 14.f3 Rf8
=/+ (-0.36) Depth: 27/62 01:16:05 31382mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Bd7 7.Bd3 Bc6 8.f3 e6 9.b3 Qe7 10.Ra3 Nd7 11.Qd2 Nf6 12.Bg5 b6 13.Qc3 Rd8 14.Ra2 Rf8 15.Rf2
=/+ (-0.40) Depth: 28/62 02:51:55 70983mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Bd7 7.Bd3 Bc6 8.f3 e6 9.b3 Nc8 10.Rb1 Ne7 11.Bg5 Qd7 12.Nxd4 cxd4 13.Qc2 b6 14.Bxe7 Qxe7 15.Be4 Qd7
=/+ (-0.39) Depth: 29/62 03:45:02 93018mN
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Naum 4.2:
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+
+/= (0.32) Depth: 6/20 00:00:00 15kN
1...Bd7 2.a5 Nc8 3.Bg5 Rf5 4.d5
= (0.18) Depth: 6/20 00:00:00 16kN
1...a5 2.Bg5 Bd7 3.Qd3 e5 4.d5
=/+ (-0.38) Depth: 6/20 00:00:00 22kN
1...a5 2.Bg5 Bd7 3.Ne4 d5 4.cxd5 Nxd5
=/+ (-0.35) Depth: 7/20 00:00:00 25kN
1...a5 2.Be3 Bd7 3.Qb3 Nb4 4.Ne4 d5 5.cxd5
=/+ (-0.42) Depth: 8/24 00:00:00 40kN
1...a5 2.Be3 Bd7 3.Qb3 Nb4 4.Ng5 Rf5 5.Nce4
=/+ (-0.32) Depth: 9/24 00:00:00 75kN
1...a5 2.Be3 Bd7 3.Qb3 Rf5 4.d5 Nb4 5.Nd4 Bxd4 6.Bxd4
=/+ (-0.27) Depth: 10/25 00:00:00 106kN
1...Rxf3
=/+ (-0.28) Depth: 11/27 00:00:00 553kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Be4 d5 5.Bd3 Qd6 6.Ba3 c5
=/+ (-0.37) Depth: 11/27 00:00:00 689kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Ba3 Nxf3+ 5.Qxf3 Qf8 6.Qxf8+ Kxf8 7.Rac1
=/+ (-0.30) Depth: 12/30 00:00:00 1563kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Ba3 Nxf3+ 5.Qxf3 Qf8 6.Qxf8+ Kxf8 7.Rac1 Bd7
=/+ (-0.30) Depth: 13/25 00:00:00 1741kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Bg5 a5 5.Ra3 Nxf3+ 6.Qxf3 Ne5 7.Qe4 Bd7 8.f4
=/+ (-0.33) Depth: 14/31 00:00:00 3543kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Bg5 a5 5.Ra3 c6 6.Re1 h6 7.Bd2 Ne5 8.Be4 d5
=/+ (-0.29) Depth: 15/34 00:00:01 5758kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 Nf7 9.Bf4
=/+ (-0.27) Depth: 16/39 00:00:04 26033kN
1...d5
=/+ (-0.28) Depth: 16/39 00:00:05 32402kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 Nf7 9.Bf4
=/+ (-0.27) Depth: 16/49 00:00:05 34584kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 h6 9.Be3 Nec6
=/+ (-0.32) Depth: 17/39 00:00:07 44792kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bc3
=/+ (-0.35) Depth: 18/43 00:00:15 97173kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bc3 Nb4
=/+ (-0.35) Depth: 19/42 00:00:17 110mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 a5 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bg4 Nb4 11.Rf2
=/+ (-0.38) Depth: 20/47 00:00:26 168mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Nec6 8.Nxd4 Nxd4 9.Be3 e5 10.Bxc8 Qxc8 11.Bxd4 exd4
=/+ (-0.34) Depth: 21/46 00:00:46 308mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c5 5.Bg5 Nxf3+ 6.Qxf3 Ne5 7.Qg3 Bd7 8.Ne4 Nc6 9.Qh4 Qf8 10.Rfd1 h6 11.Be3 Nd4 12.f3
=/+ (-0.34) Depth: 22/55 00:02:21 959mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c5 5.Bg5 Nxf3+ 6.Qxf3 Ne5 7.Qg3 Bd7 8.Ne4 Nc6 9.Qh4 Qf8 10.Rfd1 h6 11.Be3
=/+ (-0.34) Depth: 23/52 00:03:53 1585mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Bd3 Bd7 7.f3 Bc6 8.Ra3 e6 9.b3 d5 10.Qb1 Bf6 11.Qe1
=/+ (-0.38) Depth: 24/55 00:09:17 3795mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Bd3 Bd7 7.f3 Bc6 8.Ra3 d5 9.cxd5 Nxd5 10.Bg5 Qb6 11.Bc4 e6 12.Re1 h6 13.Be3 Rf8
=/+ (-0.37) Depth: 25/55 00:12:47 5277mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Be6 7.b3 d5 8.cxd5 Bxd5 9.Rb1 Qd7 10.Nc3 Bc6 11.h4 e6 12.h5 Nd5 13.Nxd5 Qxd5 14.Bf1
=/+ (-0.38) Depth: 26/60 00:23:55 9863mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Re1 Be6 6.b3 Nd7 7.Rb1 Bf5 8.Bd3 Bxd3 9.Qxd3 Nc5 10.Qd1 c6 11.Qg4 Bf6 12.Ne4 Nxe4 13.Qxe4 Qd7 14.f3 Rf8
=/+ (-0.36) Depth: 27/62 01:16:05 31382mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Bd7 7.Bd3 Bc6 8.f3 e6 9.b3 Qe7 10.Ra3 Nd7 11.Qd2 Nf6 12.Bg5 b6 13.Qc3 Rd8 14.Ra2 Rf8 15.Rf2
=/+ (-0.40) Depth: 28/62 02:51:55 70983mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Bd7 7.Bd3 Bc6 8.f3 e6 9.b3 Nc8 10.Rb1 Ne7 11.Bg5 Qd7 12.Nxd4 cxd4 13.Qc2 b6 14.Bxe7 Qxe7 15.Be4 Qd7
=/+ (-0.39) Depth: 29/62 03:45:02 93018mN
-
michiguel
- Posts: 6401
- Joined: Thu Mar 09, 2006 8:30 pm
- Location: Chicago, Illinois, USA
Re: Interesting exchange sacrifice option
mhalstern wrote:The Exchange Sac must be good as well, as Naum 4.2 likes it after 3 hours and 45 minutes:
New game
r1bq1rk1/ppp1p1bp/1nnpp1p1/8/P1PP4/2N2N2/1P2BPPP/R1BQ1RK1 b - - 0 1
Analysis by Naum 4.2:
1...e5 2.dxe5 Nxe5 3.a5 Nbd7 4.Qd5+
+/= (0.32) Depth: 6/20 00:00:00 15kN
1...Bd7 2.a5 Nc8 3.Bg5 Rf5 4.d5
= (0.18) Depth: 6/20 00:00:00 16kN
1...a5 2.Bg5 Bd7 3.Qd3 e5 4.d5
=/+ (-0.38) Depth: 6/20 00:00:00 22kN
1...a5 2.Bg5 Bd7 3.Ne4 d5 4.cxd5 Nxd5
=/+ (-0.35) Depth: 7/20 00:00:00 25kN
1...a5 2.Be3 Bd7 3.Qb3 Nb4 4.Ne4 d5 5.cxd5
=/+ (-0.42) Depth: 8/24 00:00:00 40kN
1...a5 2.Be3 Bd7 3.Qb3 Nb4 4.Ng5 Rf5 5.Nce4
=/+ (-0.32) Depth: 9/24 00:00:00 75kN
1...a5 2.Be3 Bd7 3.Qb3 Rf5 4.d5 Nb4 5.Nd4 Bxd4 6.Bxd4
=/+ (-0.27) Depth: 10/25 00:00:00 106kN
1...Rxf3
=/+ (-0.28) Depth: 11/27 00:00:00 553kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Be4 d5 5.Bd3 Qd6 6.Ba3 c5
=/+ (-0.37) Depth: 11/27 00:00:00 689kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Ba3 Nxf3+ 5.Qxf3 Qf8 6.Qxf8+ Kxf8 7.Rac1
=/+ (-0.30) Depth: 12/30 00:00:00 1563kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 a5 4.Ba3 Nxf3+ 5.Qxf3 Qf8 6.Qxf8+ Kxf8 7.Rac1 Bd7
=/+ (-0.30) Depth: 13/25 00:00:00 1741kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Bg5 a5 5.Ra3 Nxf3+ 6.Qxf3 Ne5 7.Qe4 Bd7 8.f4
=/+ (-0.33) Depth: 14/31 00:00:00 3543kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Bg5 a5 5.Ra3 c6 6.Re1 h6 7.Bd2 Ne5 8.Be4 d5
=/+ (-0.29) Depth: 15/34 00:00:01 5758kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 Nf7 9.Bf4
=/+ (-0.27) Depth: 16/39 00:00:04 26033kN
1...d5
=/+ (-0.28) Depth: 16/39 00:00:05 32402kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 Nf7 9.Bf4
=/+ (-0.27) Depth: 16/49 00:00:05 34584kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Ra2 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Bd7 8.Bg5 h6 9.Be3 Nec6
=/+ (-0.32) Depth: 17/39 00:00:07 44792kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bc3
=/+ (-0.35) Depth: 18/43 00:00:15 97173kN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bc3 Nb4
=/+ (-0.35) Depth: 19/42 00:00:17 110mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 a5 5.Bg4 Ne5 6.Bh3 c5 7.Bb2 Bd7 8.Ne4 Qb6 9.f4 Nec6 10.Bg4 Nb4 11.Rf2
=/+ (-0.38) Depth: 20/47 00:00:26 168mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c6 5.Bg4 Ne5 6.Bh3 c5 7.Nb5 Nec6 8.Nxd4 Nxd4 9.Be3 e5 10.Bxc8 Qxc8 11.Bxd4 exd4
=/+ (-0.34) Depth: 21/46 00:00:46 308mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c5 5.Bg5 Nxf3+ 6.Qxf3 Ne5 7.Qg3 Bd7 8.Ne4 Nc6 9.Qh4 Qf8 10.Rfd1 h6 11.Be3 Nd4 12.f3
=/+ (-0.34) Depth: 22/55 00:02:21 959mN
1...Rxf3 2.Bxf3 Nxd4 3.b3 Nd7 4.Rb1 c5 5.Bg5 Nxf3+ 6.Qxf3 Ne5 7.Qg3 Bd7 8.Ne4 Nc6 9.Qh4 Qf8 10.Rfd1 h6 11.Be3
=/+ (-0.34) Depth: 23/52 00:03:53 1585mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Bd3 Bd7 7.f3 Bc6 8.Ra3 e6 9.b3 d5 10.Qb1 Bf6 11.Qe1
=/+ (-0.38) Depth: 24/55 00:09:17 3795mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Bd3 Bd7 7.f3 Bc6 8.Ra3 d5 9.cxd5 Nxd5 10.Bg5 Qb6 11.Bc4 e6 12.Re1 h6 13.Be3 Rf8
=/+ (-0.37) Depth: 25/55 00:12:47 5277mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Be6 7.b3 d5 8.cxd5 Bxd5 9.Rb1 Qd7 10.Nc3 Bc6 11.h4 e6 12.h5 Nd5 13.Nxd5 Qxd5 14.Bf1
=/+ (-0.38) Depth: 26/60 00:23:55 9863mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Re1 Be6 6.b3 Nd7 7.Rb1 Bf5 8.Bd3 Bxd3 9.Qxd3 Nc5 10.Qd1 c6 11.Qg4 Bf6 12.Ne4 Nxe4 13.Qxe4 Qd7 14.f3 Rf8
=/+ (-0.36) Depth: 27/62 01:16:05 31382mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Bd7 7.Bd3 Bc6 8.f3 e6 9.b3 Qe7 10.Ra3 Nd7 11.Qd2 Nf6 12.Bg5 b6 13.Qc3 Rd8 14.Ra2 Rf8 15.Rf2
=/+ (-0.40) Depth: 28/62 02:51:55 70983mN
1...Rxf3 2.Bxf3 Nxd4 3.Be2 a5 4.Be3 e5 5.Nb5 c5 6.Re1 Bd7 7.Bd3 Bc6 8.f3 e6 9.b3 Nc8 10.Rb1 Ne7 11.Bg5 Qd7 12.Nxd4 cxd4 13.Qc2 b6 14.Bxe7 Qxe7 15.Be4 Qd7
=/+ (-0.39) Depth: 29/62 03:45:02 93018mN
Gaviota likes Rxf3 after 8 seconds, doubts a little bit, and sticks to it after 66 seconds in AMD 2.4 Ghz (one core)
Miguel
Code: Select all
82 1: 0.0 +0.78 Bd7
1514 2: 0.0 +0.71 Bd7 6.b3
4916 3: 0.0 +0.59 a5 6.b3 Nd7
21209 4: 0.1 +0.62 a5 6.b3 Nd7 7.Bg5
63562 5: 0.3 +0.59 a5 6.c5 Nd5 7.Nxd5 exd5 8.Qb3 dxc5
9.dxc5
116502 6 0.5 +0.56 a5 6.b3 Nd7 7.Qd3 Rf5 8.Qe4
236748 6 1.0 +0.57 Rf5 6.Be3 Bd7 7.Bd3 Rh5 8.Nb5
249607 6: 1.0 +0.57 Rf5 6.Be3 Bd7 7.Bd3 Rh5 8.Nb5
341737 7 1.4 +0.52 Rf5 6.Be3 Bd7 7.Bd3 Rh5 8.b3 Be8
512272 7 2.1 +0.57 a5 6.Re1 Bd7 7.b3 e5 8.d5 e4 9.dxc6
exf3 10.cxd7 fxe2
731520 7: 2.9 +0.57 a5 6.Re1 Bd7 7.b3 e5 8.d5 e4 9.dxc6
exf3 10.cxd7 fxe2
961770 8 3.8 +0.49 a5 6.Re1 Bd7 7.Bf1 Nb4 8.b3 Rf5 9.Re4
2051807 8 8.1 +0.54 Rxf3 6.Bxf3 Nxc4 7.d5 Nd4 8.b3 Ne5
9.Be4
2291360 8: 9.0 +0.54 Rxf3 6.Bxf3 Nxc4 7.d5 Nd4 8.b3 Ne5
9.Be4
2515515 9 9.9 +0.52 Rxf3 6.Bxf3 Nxc4 7.Be3 d5 8.b3 Nxe3
9.fxe3 Qd6 10.Bg4
3904958 9 15.2 +0.54 a5 6.Be3 Nb4 7.b3 Bd7 8.Qd2 Bc6 9.Bh6
Rf5 10.Bxg7 Kxg7
5723493 9: 22.2 +0.54 a5 6.Be3 Nb4 7.b3 Bd7 8.Qd2 Bc6 9.Bh6
Rf5 10.Bxg7 Kxg7
7105389 10 27.6 +0.55 a5 6.Be3 Nb4 7.b3 Bd7 8.Qb1 Bc6 9.Ng5
Rf6 10.f3
10619477 10: 41.3 +0.55 a5 6.Be3 Nb4 7.b3 Bd7 8.Qb1 Bc6 9.Ng5
Rf6 10.f3
14736122 11 57.5 +0.53 a5 6.Be3 Nb4 7.Na2 Nxa2 8.Rxa2 Bd7 9.b3
Ra7 10.Qd2 Bc6 11.d5 exd5 12.cxd5
17129776 11 66.9 +0.71 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 Ne5 10.Be2 Nxe2+ 11.Qxe2
19236788 11: 75.7 +0.71 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 Ne5 10.Be2 Nxe2+ 11.Qxe2
22657139 12 89.8 +0.70 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 Ne5 10.Be2 Nxe2+ 11.Qxe2 Bd7
33869890 12: 136.1 +0.70 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 Ne5 10.Be2 Nxe2+ 11.Qxe2 Bd7
46840547 13 191.0 +0.68 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 Ne5 10.Be2 Nxe2+ 11.Qxe2 Bd7
12.Bf4
88158935 13: 370.6 +0.68 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 Ne5 10.Be2 Nxe2+ 11.Qxe2 Bd7
12.Bf4
149078647 14 626.8 +0.81 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 d5 10.cxd5 Ne5 11.Ng5 Nexf3+
12.Nxf3 Nxf3+ 13.Qxf3 exd5
311349660 14: 1352.2 +0.81 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Ra2 a5
9.Ne4 d5 10.cxd5 Ne5 11.Ng5 Nexf3+
12.Nxf3 Nxf3+ 13.Qxf3 exd5
533825683 15 2315.8 +0.73 Rxf3 6.Bxf3 Nxd4 7.b3 Nd7 8.Rb1 e5 9.a5
c6 10.a6 e6 11.Be3 d5 12.axb7 Bxb7
13.Ra1 Nc5-
Eastendboy
Re: Interesting exchange sacrifice option
I think a GM would make the exchange sacrifice without even thinking about it. A rook for a knight plus an important central pawn, a clear pawn majority and the opportunity to trade off one of white's bishops seems like a great trade. White's up against it after 10...Rxf3 11. Bxf3 Nxd4 since the bishop will be exchanged for the knight in the near future. I'm tempted to say that white is on the verge of being strategically lost.