Adorjan vs Tisdall 1981
On a single core most engines take a long time to see it.
[d] r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w dxc6
Queen sacrifice
Moderator: Ras
-
kgburcham
- Posts: 2016
- Joined: Sun Feb 17, 2008 4:19 pm
Re: Queen sacrifice
[d] r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - 0 1
Rybka 3
1.dxc6 Rxd1 2.Rfxd1[] Bf8 3.Nd4 a5 4.Rac1 Kh8 5.Rd2 a4 6.a3 h6 7.Rdc2 bxc6 8.Nxc6 Bb7 9.Bf3 c3 10.Rxc3 Qa2 11.R3c2
+/= (0.32) Depth: 18 00:03:57 64235kN
1.dxc6 Rxd1 2.Rfxd1[] Qf8 3.Nd4 bxc6 4.Bxc6 Bh3
= (0.23) Depth: 19 00:06:07 102mN
1.dxc6 Rxd1 2.Rfxd1[] Qf8 3.Nd4 bxc6 4.Nxc6 Bb7 5.Rd7 Bxc6 6.Bxc6 Qc8 7.Bd5+ Kh8 8.Rf7 Rb8
9.Bf4 c3 10.bxc3 Qxc3 11.Rc1 Qa3 12.Rcc7 Qd3 13.Bc4 Qb1+ 14.Bf1 Rg8 15.Rfd7 a5 16.a4
= (0.21) Depth: 20 00:09:19 166mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.Rcd4 Be7 7.Rd7 Bc8 8.Rc7 Rb8
9.b4 c5 10.Bxc5 Bxc5 11.Rxc5 Qe8 12.h3 a6 13.Nd4 Bb7 14.Nc6
= (0.19) Depth: 21 00:16:02 309mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7 10.Rcd4 Bxb4 11.Nxg7 Bc8 12.Bf4 Rb7 13.Ne8 Bd7 14.Nxf6+ Qxf6 15.Rxd7 Rxd7 16.Rxd7
+/= (0.31) Depth: 22 00:24:11 462mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7 10.Rcd4 Bxb4 11.Nxg7[] Bc8 12.Bf4 Rb7 13.Ne8 Bd7 14.Nxf6+ Qxf6 15.Rxd7 Rxd7
16.Rxd7
+/= (0.31) Depth: 23 00:29:12 548mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7 10.Rcd4 Bxb4 11.Nxg7 Qxg7 12.Rxb4 Re8 13.Rbd4 Qg6 14.Rd8 Qh5 15.R1d6 Kf7 16.R6d7+
+/= (0.39) Depth: 24 01:34:54 1806mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7[] 10.Rcd4 Be5 11.Rd8+ Rxd8 12.Rxd8+ Kf7 13.Bh3 Bd6 14.Rh8 f5 15.Bxf5 Qf6[] 16.Nd8+
+/= (0.28) Depth: 25 02:35:00 3041mN
Rybka 3
1.dxc6 Rxd1 2.Rfxd1[] Bf8 3.Nd4 a5 4.Rac1 Kh8 5.Rd2 a4 6.a3 h6 7.Rdc2 bxc6 8.Nxc6 Bb7 9.Bf3 c3 10.Rxc3 Qa2 11.R3c2
+/= (0.32) Depth: 18 00:03:57 64235kN
1.dxc6 Rxd1 2.Rfxd1[] Qf8 3.Nd4 bxc6 4.Bxc6 Bh3
= (0.23) Depth: 19 00:06:07 102mN
1.dxc6 Rxd1 2.Rfxd1[] Qf8 3.Nd4 bxc6 4.Nxc6 Bb7 5.Rd7 Bxc6 6.Bxc6 Qc8 7.Bd5+ Kh8 8.Rf7 Rb8
9.Bf4 c3 10.bxc3 Qxc3 11.Rc1 Qa3 12.Rcc7 Qd3 13.Bc4 Qb1+ 14.Bf1 Rg8 15.Rfd7 a5 16.a4
= (0.21) Depth: 20 00:09:19 166mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.Rcd4 Be7 7.Rd7 Bc8 8.Rc7 Rb8
9.b4 c5 10.Bxc5 Bxc5 11.Rxc5 Qe8 12.h3 a6 13.Nd4 Bb7 14.Nc6
= (0.19) Depth: 21 00:16:02 309mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7 10.Rcd4 Bxb4 11.Nxg7 Bc8 12.Bf4 Rb7 13.Ne8 Bd7 14.Nxf6+ Qxf6 15.Rxd7 Rxd7 16.Rxd7
+/= (0.31) Depth: 22 00:24:11 462mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7 10.Rcd4 Bxb4 11.Nxg7[] Bc8 12.Bf4 Rb7 13.Ne8 Bd7 14.Nxf6+ Qxf6 15.Rxd7 Rxd7
16.Rxd7
+/= (0.31) Depth: 23 00:29:12 548mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7 10.Rcd4 Bxb4 11.Nxg7 Qxg7 12.Rxb4 Re8 13.Rbd4 Qg6 14.Rd8 Qh5 15.R1d6 Kf7 16.R6d7+
+/= (0.39) Depth: 24 01:34:54 1806mN
1.dxc6 Rxd1[] 2.Rfxd1[] Qf8 3.a3 Bd6 4.Rac1 bxc6 5.Rxc4 Bb7 6.b4 a5 7.Nd4 axb4 8.axb4 Rb8
9.Ne6 Qe7[] 10.Rcd4 Be5 11.Rd8+ Rxd8 12.Rxd8+ Kf7 13.Bh3 Bd6 14.Rh8 f5 15.Bxf5 Qf6[] 16.Nd8+
+/= (0.28) Depth: 25 02:35:00 3041mN
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: Queen sacrifice
Well, my machine has eight cores, and still it took Stockfish-1.6.2 a long time to find dxc6:Jim Collins wrote:Adorjan vs Tisdall 1981
On a single core most engines take a long time to see it.
[d] r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w dxc6
Code: Select all
Searching: r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
2 +0.04 00:00 361 Nd4 Nxd4 Qxd4
3 +0.12 00:00 980 Nd4 Nxd4 Qxd4 b5
4 +0.20 00:00 2201 Nd4 Rxd5 a3 Nxd4 Bxd5 Qxd5 Qxd4
5 +0.24 00:00 7681 Nd4 Ne5 Qc2 Bd7 Ne6 Bxe6 dxe6 Qxe6 Bxb7
6 +0.24 00:00 11649 Nd4 Ne5 Qc2 Qe7 Ne6 Bxe6 dxe6 Qxe6 Bxb7
7 > +0.44 00:00 18174 Nd4 Nxd4 Qxd4 b5 a4
8 +0.69 00:00 33189 Nd4 Nxd4 Qxd4 b5 a4 Bb7 axb5 Bxd5 Rxa7 Rxa7 Qxa7
Qxa7 Bxa7
9 < +0.20 00:00 102577 Nd4 Ne5 f4 Ng4 Bd2 Qh5
10 +0.28 00:00 591814 Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Be4 g6 Ne6 Bxe6
dxe6 Qxe6 Bxb7
11 +0.20 00:01 2074k Nd4 Ne5 Qa4 Bd6 Nb5 Bf5 Nxd6 Rxd6 Rfd1 Nd3 Rdb1
Ne5 Bc5 Bd7
12 +0.16 00:01 3591k Nd4 Ne5 Qa4 Bd6 Nb5 Bf8 h3 a6 Nd4 Bd7 Qc2 Bd6 Ne6
Bxe6 dxe6 Qxe6 Bxb7 Qxh3 Bxa8 Rxa8
13 > +0.36 00:01 5790k Nd4 Ne5 Qa4 Bd6 Qc2 Bd7 Ne6 Bxe6 dxe6 Qxe6 Be4
Ng4 Bf5
14 +0.44 00:02 7692k Nd4 Ne5 Qa4 Bd6 Qc2 Bd7 Ne6 Bxe6 dxe6 Qxe6 Qe4
Re8 Rad1 Kh8 Qxb7 Rab8 Qd5 Nd3 Qxe6 Rxe6
15 +0.32 00:03 15048k Nd4 Ne5 Qa4 Bd6 Qc2 Qh5 h4 Bc5 b3 g5 bxc4 gxh4
gxh4 Ng4 Rfb1 Qxh4 Kf1 Nxe3+ fxe3 Bxd4 exd4 Qxd4
16 +0.44 00:05 31462k Nd4 Ne5 Qa4 Bd6 Qc2 Qh5 h4 Bc5 Rfe1 Bb6 Ne6 Rd6
Bf4 Ba5 Bxe5 fxe5 Qe2 Qxe2 Rxe2 Bxe6 dxe6 Rxe6
Bxb7
17 +0.44 00:08 47498k Nd4 Ne5 Qa4 Bd6 Ne6 Re8 Qc2 Qh5 Bf4 Bxe6 dxe6
Rad8 Bxe5 Qxe5 Rad1 Rxe6 Bd5 Re8 Bxe6+ Qxe6
18 < +0.24 00:20 139885k Nd4 Ne5 Qa4 a5 a3 Bd7 Nc6 bxc6 dxc6 Nxc6 Bxc6
Bxc6 Qxc6 Bd6 Rad1 Be5
19 +0.24 00:34 236617k Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Bf4 Bg4 h3 Bd7 Rfe1
Bc5 Rad1 Bxd4 Rxd4 Nd3 Rd1 Nxf4 Rxf4 b5 d6 Ra6
20 +0.08 01:49 786137k Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Bf4 Rac8 Be4 g6
Rac1 Bc5 Ne6 Bxe6 dxe6 Qxe6 Bxb7 Rb8 Bxe5 fxe5
Qxc4 Qxc4 Rxc4 Rxb7 Rxc5 Rxb2 Rxe5
21 +0.08 03:18 1434M Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Bf4 Rac8 Be4 g6
Rac1 Bc5 Ne6 Bxe6 dxe6 Qxe6 Bxb7 Rb8 Bxe5 fxe5
Qxc4 Qxc4 Rxc4 Rxb7 Rxc5 Rxb2 Rxe5
22 > +0.28 05:29 2384M Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Ne6 Bxe6 dxe6 Qxe6
Rad1 Nd3 b3 Bxa3 bxc4 Nb2 Bd5
23 +0.20 07:36 3312M Nd4 Ne5 Qa4 Bf8 f4 Bd7 Qc2 Ng4 Bd2 Bc5 Qxc4 Bb6
Kh1 Bxd4 Qxd4 Bc6 d6 Qe6 Rae1 Qxd6 Qxd6 Rxd6 Bb4
Bxg2+ Kxg2 Rd3 Rf3 Rxf3 Kxf3 Nxh2+ Kg2 a5 Bc5
24 +0.04 31:27 13825M Nd4 Ne5 Qa4 Bf8 f4 Bd7 Qc2 Ng4 Bd2 Bc5 Qxc4 Rac8
Kh1 b5 Qd3 Be8 b4 Bb6 Nf5 Qd7 d6 Nf2+ Rxf2 Bxf2
Bd5+ Kh8 Kg2 Bg6 Be4 Bb6
24 +0.32 45:30 20260M dxc6 Rxd1 Rfxd1 Bf8 Nd4 Kh8 Rac1 h6 b3 bxc6 Rxc4
Bg4 Re1 Re8 Nxc6 f5 Nd4 Kh7 Rec1 Ba3 Rc7 Re7 Rxe7
Qxe7 Rc4 Qd7 h3 Bh5 Bc6 Qf7 Bf4
25 +0.28 52:21 23439M dxc6 Rxd1 Rfxd1 Bf8 Nd4 Kh8 Rac1 h6 b3 bxc6 Rxc4
Bg4 Rdc1 Re8 Bxc6 Rc8 Bg2 Rxc4 Rxc4 Kg8 Ra4 Qd7
Bc6 Qf7 Bf3 h5 Bxg4 hxg4 Nc6 Qd5 Rc4
Nodes: 35137453606
Nodes/second: 7491468
Best move: dxc6
Ponder move: Rxd1
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: Queen sacrifice
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - -
Engine: IvanHoe 9.73b x64P 4T 128MB (1024 MB)
by Yakov Petrovich Golyadkin, Igor Igorovi
15.01 0:01 +0.20 1.Nd4 Rxd5 2.Bxd5 Qxd5 3.Nc2 Qxd1
4.Rfxd1 Bf8 5.Kg2 Ne5 6.Bd4 Bg4
7.Bxe5 Bxd1 8.Rxd1 fxe5 9.Ne3 b5
10.Rd5 a6 11.Rxe5 Rd8 (4.130.269) 3309
15.39 0:01 +0.20 1.Nd4 Rxd5 2.Bxd5 Qxd5 3.Nc2 Qxd1
4.Rfxd1 Bf8 5.Kg2 Ne5 6.Bd4 Bg4
7.Bxe5 Bxd1 8.Rxd1 fxe5 9.Ne3 b5
10.Rd5 a6 11.Rxe5 Rd8 (4.424.652) 3299
16.39 0:01 +0.12-- 1.Nd4 Rxd5 2.Bxd5 Qxd5 3.Nc2 Qxd1
4.Rfxd1 Bf8 5.Kg2 Ne5 6.Bd4 Bg4
7.Bxe5 Bxd1 8.Rxd1 fxe5 9.Ne3 b5
10.Rd5 a6 11.Rxe5 Rd8 (6.947.359) 3506
16.01 0:03 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (13.857.979) 3813
16.39 0:03 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (14.390.816) 3812
17.01 0:04 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (15.986.347) 3838
17.39 0:04 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (18.143.408) 3851
18.01 0:06 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (24.787.709) 3943
18.39 0:07 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (28.743.086) 3962
19.01 0:12 +0.16++ 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Ng4 6.Qxc4 Qxc4
7.bxc4 Nxe3 8.fxe3 Rab8 9.Rab1 b6
10.Bd5+ Kh8 11.e4 Rbc8 12.Kg2 Be5
13.Rbd1 Rd7 14.Rd3 (52.636.773) 4060
19.01 0:14 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.h3 Bd7 4.Qc2 Re8
5.Ne6 Bxe6 6.dxe6 Qxe6 7.Bxb7 Rad8
8.Bg2 Re7 9.b3 Rc7 10.Rab1 Bc5
11.Rfd1 Rd3 (59.304.106) 4061
19.39 0:15 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.h3 Bd7 4.Qc2 Re8
5.Ne6 Bxe6 6.dxe6 Qxe6 7.Bxb7 Rad8
8.Bg2 Re7 9.b3 Rc7 10.Rab1 Bc5
11.Rfd1 Rd3 (62.804.606) 4058
20.39 0:23 +0.08-- 1.Nd4 Ne5 2.Qa4 Bf8 3.h3 Bd7 4.Qc2 Re8
5.Ne6 Bxe6 6.dxe6 Qxe6 7.Bxb7 Rad8
8.Bg2 Re7 9.Rab1 Nd3 10.b3 Rc7
11.Rfd1 Bb4 12.bxc4 Rxc4 (94.803.303) 4100
20.01 0:32 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (131.102.516) 4038
20.39 0:32 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (131.173.905) 4034
21.01 0:35 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (145.197.887) 4062
21.39 0:39 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (161.934.035) 4085
22.01 0:46 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (191.587.179) 4135
22.39 0:53 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (224.758.056) 4168
23.01 1:09 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Kh8 9.Be4 Nc5
10.Bxc5 Bxc5 11.Bxb7 Rab8 12.Kg2 g6
13.Bd5 Kg7 14.Rfe1 (293.313.604) 4233
23.39 1:26 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Kh8 9.Be4 Nc5
10.Bxc5 Bxc5 11.Bxb7 Rab8 12.Kg2 g6
13.Bd5 Kg7 14.Rfe1 (372.430.781) 4284
24.01 3:11 +0.13 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Qf7 6.Qb5 Qh5
7.Rd5 Nf3+ 8.Bxf3 Qxf3 9.Rxd8 Rxd8
10.Qxc4+ Qd5 11.Qxd5+ Rxd5 12.Rc1 Bd6
13.Bxa7 Rd2 14.Rb1 (860.021.590) 4486
24.39 3:52 +0.13 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Qf7 6.Qb5 Qh5
7.Rd5 Nf3+ 8.Bxf3 Qxf3 9.Rxd8 Rxd8
10.Qxc4+ Qd5 11.Qxd5+ Rxd5 12.Rc1 Bd6
13.Bxa7 Rd2 14.Rb1 (1.042.185.005) 4480
25.01 6:24 +0.17 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Qf7 6.Qa5 Nd3
7.b3 b6 8.Qb5 Rac8 9.Be4 Nb4 10.Rxd8 Rxd8
11.bxc4 Re8 12.Bb1 Re5 13.Qa4 Qxc4
14.Qxa7 (1.667.633.416) 4331
25.06 9:33 +0.21++ 1.dxc6 (2.554.652.706) 4453
25.01 11:01 +0.29++ 1.dxc6 (2.969.768.123) 4486
25.01 15:48 +0.31 1.dxc6 Rxd1 2.Rfxd1 Bf8 3.Nd4 Kh8
4.Rac1 h6 5.h4 bxc6 6.Nxc6 Bg4 7.Rd4 Bd7
8.Rdxc4 Re8 9.Rd4 Bf5 10.b3 a6 (4.377.010.914) 4613
25.39 16:07 +0.31 1.dxc6 Rxd1 2.Rfxd1 Bf8 3.Nd4 Kh8
4.Rac1 h6 5.h4 bxc6 6.Nxc6 Bg4 7.Rd4 Bd7
8.Rdxc4 Re8 9.Rd4 Bf5 10.b3 a6 (4.463.579.245) 4611
25.01 16:16 +0.31 1.dxc6 Rxd1 2.Rfxd1 Bf8 3.Nd4 Kh8
4.Rac1 h6 5.h4 bxc6 6.Nxc6 Bg4 7.Rd4 Bd7
8.Rdxc4 Re8 9.b3 Bd6 10.R1c3 a6
11.Ra4 Bc8 (4.502.708.519) 4610
best move: d5xc6 time: 16:16.800 min n/s: 4.610.000 nodes: 4.502.708.519
Engine: IvanHoe 9.73b x64P 4T 128MB (1024 MB)
by Yakov Petrovich Golyadkin, Igor Igorovi
15.01 0:01 +0.20 1.Nd4 Rxd5 2.Bxd5 Qxd5 3.Nc2 Qxd1
4.Rfxd1 Bf8 5.Kg2 Ne5 6.Bd4 Bg4
7.Bxe5 Bxd1 8.Rxd1 fxe5 9.Ne3 b5
10.Rd5 a6 11.Rxe5 Rd8 (4.130.269) 3309
15.39 0:01 +0.20 1.Nd4 Rxd5 2.Bxd5 Qxd5 3.Nc2 Qxd1
4.Rfxd1 Bf8 5.Kg2 Ne5 6.Bd4 Bg4
7.Bxe5 Bxd1 8.Rxd1 fxe5 9.Ne3 b5
10.Rd5 a6 11.Rxe5 Rd8 (4.424.652) 3299
16.39 0:01 +0.12-- 1.Nd4 Rxd5 2.Bxd5 Qxd5 3.Nc2 Qxd1
4.Rfxd1 Bf8 5.Kg2 Ne5 6.Bd4 Bg4
7.Bxe5 Bxd1 8.Rxd1 fxe5 9.Ne3 b5
10.Rd5 a6 11.Rxe5 Rd8 (6.947.359) 3506
16.01 0:03 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (13.857.979) 3813
16.39 0:03 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (14.390.816) 3812
17.01 0:04 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (15.986.347) 3838
17.39 0:04 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (18.143.408) 3851
18.01 0:06 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (24.787.709) 3943
18.39 0:07 +0.08 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Bc7 6.Bxb7 Rab8
7.Qxa7 Ng4 8.Rfe1 Nxe3 9.Rxe3 Be5
10.Bg2 cxb3 11.axb3 Rxb3 12.Rxb3 Qxb3
13.Rc1 Rd1+ 14.Rxd1 (28.743.086) 3962
19.01 0:12 +0.16++ 1.Nd4 Ne5 2.Qa4 Bd6 3.Ne6 Bxe6
4.dxe6 Qxe6 5.b3 Ng4 6.Qxc4 Qxc4
7.bxc4 Nxe3 8.fxe3 Rab8 9.Rab1 b6
10.Bd5+ Kh8 11.e4 Rbc8 12.Kg2 Be5
13.Rbd1 Rd7 14.Rd3 (52.636.773) 4060
19.01 0:14 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.h3 Bd7 4.Qc2 Re8
5.Ne6 Bxe6 6.dxe6 Qxe6 7.Bxb7 Rad8
8.Bg2 Re7 9.b3 Rc7 10.Rab1 Bc5
11.Rfd1 Rd3 (59.304.106) 4061
19.39 0:15 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.h3 Bd7 4.Qc2 Re8
5.Ne6 Bxe6 6.dxe6 Qxe6 7.Bxb7 Rad8
8.Bg2 Re7 9.b3 Rc7 10.Rab1 Bc5
11.Rfd1 Rd3 (62.804.606) 4058
20.39 0:23 +0.08-- 1.Nd4 Ne5 2.Qa4 Bf8 3.h3 Bd7 4.Qc2 Re8
5.Ne6 Bxe6 6.dxe6 Qxe6 7.Bxb7 Rad8
8.Bg2 Re7 9.Rab1 Nd3 10.b3 Rc7
11.Rfd1 Bb4 12.bxc4 Rxc4 (94.803.303) 4100
20.01 0:32 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (131.102.516) 4038
20.39 0:32 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (131.173.905) 4034
21.01 0:35 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (145.197.887) 4062
21.39 0:39 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (161.934.035) 4085
22.01 0:46 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (191.587.179) 4135
22.39 0:53 +0.19 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Rd7 9.Be4 Rad8
10.Bxa7 Nc5 11.Bc2 Rd2 12.Rfe1 R8d7
13.Rxd2 Rxd2 14.Rc1 (224.758.056) 4168
23.01 1:09 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Kh8 9.Be4 Nc5
10.Bxc5 Bxc5 11.Bxb7 Rab8 12.Kg2 g6
13.Bd5 Kg7 14.Rfe1 (293.313.604) 4233
23.39 1:26 +0.16 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Nd3 6.b3 cxb3
7.Qxb3 Qxb3 8.axb3 Kh8 9.Be4 Nc5
10.Bxc5 Bxc5 11.Bxb7 Rab8 12.Kg2 g6
13.Bd5 Kg7 14.Rfe1 (372.430.781) 4284
24.01 3:11 +0.13 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Qf7 6.Qb5 Qh5
7.Rd5 Nf3+ 8.Bxf3 Qxf3 9.Rxd8 Rxd8
10.Qxc4+ Qd5 11.Qxd5+ Rxd5 12.Rc1 Bd6
13.Bxa7 Rd2 14.Rb1 (860.021.590) 4486
24.39 3:52 +0.13 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Qf7 6.Qb5 Qh5
7.Rd5 Nf3+ 8.Bxf3 Qxf3 9.Rxd8 Rxd8
10.Qxc4+ Qd5 11.Qxd5+ Rxd5 12.Rc1 Bd6
13.Bxa7 Rd2 14.Rb1 (1.042.185.005) 4480
25.01 6:24 +0.17 1.Nd4 Ne5 2.Qa4 Bf8 3.Ne6 Bxe6
4.dxe6 Qxe6 5.Rad1 Qf7 6.Qa5 Nd3
7.b3 b6 8.Qb5 Rac8 9.Be4 Nb4 10.Rxd8 Rxd8
11.bxc4 Re8 12.Bb1 Re5 13.Qa4 Qxc4
14.Qxa7 (1.667.633.416) 4331
25.06 9:33 +0.21++ 1.dxc6 (2.554.652.706) 4453
25.01 11:01 +0.29++ 1.dxc6 (2.969.768.123) 4486
25.01 15:48 +0.31 1.dxc6 Rxd1 2.Rfxd1 Bf8 3.Nd4 Kh8
4.Rac1 h6 5.h4 bxc6 6.Nxc6 Bg4 7.Rd4 Bd7
8.Rdxc4 Re8 9.Rd4 Bf5 10.b3 a6 (4.377.010.914) 4613
25.39 16:07 +0.31 1.dxc6 Rxd1 2.Rfxd1 Bf8 3.Nd4 Kh8
4.Rac1 h6 5.h4 bxc6 6.Nxc6 Bg4 7.Rd4 Bd7
8.Rdxc4 Re8 9.Rd4 Bf5 10.b3 a6 (4.463.579.245) 4611
25.01 16:16 +0.31 1.dxc6 Rxd1 2.Rfxd1 Bf8 3.Nd4 Kh8
4.Rac1 h6 5.h4 bxc6 6.Nxc6 Bg4 7.Rd4 Bd7
8.Rdxc4 Re8 9.b3 Bd6 10.R1c3 a6
11.Ra4 Bc8 (4.502.708.519) 4610
best move: d5xc6 time: 16:16.800 min n/s: 4.610.000 nodes: 4.502.708.519
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jdart
- Posts: 4402
- Joined: Fri Mar 10, 2006 5:23 am
- Location: http://www.arasanchess.org
Re: Queen sacrifice
Arasan (latest build) does not play dxc6 after 20 minutes, preferring Nd4. But I am not sure with correct defense by Black that these moves are far apart in score:
359824: Adorjan,A - Tisdall,J, Eduard Lasker mem 1981
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - 0 1
Analysis by Rybka 3 32-bit (depth 17):
1. ² (0.29): 15.dxc6 Rxd1 16.Rfxd1 Bf8 17.Nd4 Kh8 18.Rac1 a5 19.Rd2 a4 20.a3 h6 21.Rdc2 bxc6 22.Nxc6 Bb7 23.Bf3 Rc8 24.Rxc4 Qe8 25.Bd5
2. = (0.13): 15.Nd4 Ne5 16.Qa4 Bf8 17.Ne6 Bxe6 18.dxe6 Qxe6 19.Rad1 Nd3 20.b3 cxb3 21.Qxb3 Qxb3 22.axb3 Rd7 23.Bxb7 Rxb7 24.Rxd3 a5 25.Ra1 Bb4 26.Rc1 Ba3
3. = (-0.11): 15.Qc1 Rxd5 16.Qxc4 Be6 17.a3
(Dart, 22.01.2010)
359824: Adorjan,A - Tisdall,J, Eduard Lasker mem 1981
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - 0 1
Analysis by Rybka 3 32-bit (depth 17):
1. ² (0.29): 15.dxc6 Rxd1 16.Rfxd1 Bf8 17.Nd4 Kh8 18.Rac1 a5 19.Rd2 a4 20.a3 h6 21.Rdc2 bxc6 22.Nxc6 Bb7 23.Bf3 Rc8 24.Rxc4 Qe8 25.Bd5
2. = (0.13): 15.Nd4 Ne5 16.Qa4 Bf8 17.Ne6 Bxe6 18.dxe6 Qxe6 19.Rad1 Nd3 20.b3 cxb3 21.Qxb3 Qxb3 22.axb3 Rd7 23.Bxb7 Rxb7 24.Rxd3 a5 25.Ra1 Bb4 26.Rc1 Ba3
3. = (-0.11): 15.Qc1 Rxd5 16.Qxc4 Be6 17.a3
(Dart, 22.01.2010)
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yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: Queen sacrifice
no, it doesn't appear 'winning' if the computer evals are to be trusted, just best.
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Dann Corbit
- Posts: 12778
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Queen sacrifice
The engines I used came up with 3 distinct plans, all of which score about the same:jdart wrote:Arasan (latest build) does not play dxc6 after 20 minutes, preferring Nd4. But I am not sure with correct defense by Black that these moves are far apart in score:
359824: Adorjan,A - Tisdall,J, Eduard Lasker mem 1981
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - 0 1
Analysis by Rybka 3 32-bit (depth 17):
1. ² (0.29): 15.dxc6 Rxd1 16.Rfxd1 Bf8 17.Nd4 Kh8 18.Rac1 a5 19.Rd2 a4 20.a3 h6 21.Rdc2 bxc6 22.Nxc6 Bb7 23.Bf3 Rc8 24.Rxc4 Qe8 25.Bd5
2. = (0.13): 15.Nd4 Ne5 16.Qa4 Bf8 17.Ne6 Bxe6 18.dxe6 Qxe6 19.Rad1 Nd3 20.b3 cxb3 21.Qxb3 Qxb3 22.axb3 Rd7 23.Bxb7 Rxb7 24.Rxd3 a5 25.Ra1 Bb4 26.Rc1 Ba3
3. = (-0.11): 15.Qc1 Rxd5 16.Qxc4 Be6 17.a3
(Dart, 22.01.2010)
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 15; pv Nd4 Ne5 Qa4 Bf8 Ne6 Bxe6 dxe6 Qxe6 Rad1 Nd3 b3 cxb3 axb3 Nb2 Rxd8 Rxd8 Qa2 Nd1 Bxa7 Nc3 Qc2 Ne2+ Kh1 g6 Qc4 Qxc4;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 15; pv Nd4 Ne5 Qa4 Bf8 Ne6 Bxe6 dxe6 Qxe6 Rad1 Nd3 b3 cxb3 axb3 Nb2 Rxd8 Rxd8 Qxa7 Qxb3 Qxb7 Qxb7 Bxb7 Nc4 Bc1 g6 Kg2 Ne5 Be4 Kf7 Bc2 Kg7 Re1 Nd3 Rd1;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 16; pv Nd4 Ne5 Qa4 Bf8 Ne6 Bxe6 dxe6 Qxe6 Rad1 Nd3 b3 Nb2 Rxd8 Rxd8 Qxa7 cxb3 Qxb7 Nd1 Qxb3 Qxb3 axb3 Nxe3 fxe3 Bc5 Kf2 Rd3 Ke2 Rxe3+ Kd2 Re5 Kd3 Kf7 Kc4 Ke6 b4 Bb6 Ra1;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 16; pv Nd4 Ne5 Qa4 Bf8 Ne6 Bxe6 dxe6 Qxe6 Rad1 Nd3 b3 cxb3 Qxb3 Qxb3 axb3 Kh8 Bxb7 Rab8 Be4 Rxb3 Bxa7 g6 g4 Rc3 Rd2 Ra3 Be3;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 18; pv Nd4 Ne5 Qa4 Bf8 Ne6 Bxe6 dxe6 Qxe6 Rad1 Nd3 b3 cxb3 Qxb3 Qxb3 axb3 Rd7 Bxb7 Rxb7 Rxd3 Rb5 Ra1 a5 Kg2 Rab8 Rd7 Ra8 Bd2 Rxb3 Rxa5;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 24; pv Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Bf4 Rac8 Qc3 Qh5 Rae1 Bh3 Bxh3 Qxh3 Bxe5 Bxe5 f4 Bxd4+ Qxd4 Qf5 Rd1 Rd7 Rfe1 b5 a4 bxa4 d6 a3;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 28; pv Nd4 Ne5 Qa4 Bd6 Qc2 Qh5 Bf4 Bg4 Bxe5 Qxe5 Ne6 Rdc8 Rfe1 Qh5 Qd2 a5 Qc2 a4 a3 g6 Be4 Qh6 Qc3;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Nd4; ce 7; pv Nd4 Ne5 Qa4 a5 a3 Bd7 Qc2 Bd6 Bf4 Re8 Rad1 Ra6 Bxe5 fxe5 Ne6 Bb5 Be4;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm Rc1; ce 6; pv Rc1 Rxd5 Nd4 Ne5 f4 Nd3 Rxc4 Nxb2 Qc2 Nxc4 Qxc4 Rxd4 Qxd4 Qe7;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 0; pv dxc6 Rxd1 Rfxd1 bxc6 Rd8+ Bf8 Rad1 Qe7 Bf1 Bb7 Bxc4+ Kh8 R8d7 Qe4;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 16; pv dxc6 Rxd1 Rfxd1 bxc6 Nd4 Bg4 Nxc6 Bxd1 Rxd1 Qh5 Rd7 Qe8 Nxb4 Qxd7 Bxa8 a5 Nd5 Qb5 Bd4;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 22; pv dxc6 Rxd1 Rfxd1 Qf8 Nd4 bxc6 Bxc6 Bh3 Bd5+ Kh8 Bxa8 Qxa8 f3 g5 Rac1 Bc5 Rc3 Qd5 b3 cxb3 axb3 h5 Rcd3 Kh7 Bf2 Bb6 Kh1;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 25; pv dxc6 Rxd1 Rfxd1 Bf8 Nd4 h6 Rac1 Kh8 h4 a6 b3 bxc6 Rxc4 Bg4 Rdc1 Ba3 Re1 Qh5 Bxc6 Rd8 Bg2 Re8 Bd2 Rxe1+ Bxe1 Bf8;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 27; pv dxc6 Rxd1 Rfxd1 Bf8 Nd4 h6 Rac1 Kh8 h4 a5 b3 bxc6 Nxc6 Bg4 Nd8 Qh5 Rd4 Rc8 Rcxc4 Rxc4 bxc4 g5 hxg5 hxg5 Nb7 Kg7 c5;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 32; pv dxc6 Rxd1 Rfxd1 Bf8 Nd4 Kh8 Rac1 h6 b3 bxc6 Rxc4 Qh5 Rdc1 Bb7 Bf3 Qe8 Kg2 a6 a4 Ba3 R1c2 Qd7;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 43; pv dxc6 Rxd1 Rfxd1 Bf8 Nd4 Kh8 Rac1 a5 a4 h5 Rd2 h4 Rdc2 h3 Bf3 bxc6 Rxc4 Kg8 Nxc6 Be6 Rd4 Rc8 Nxa5;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 7; pv dxc6 Rxd1 Rfxd1 Bf8 Rd8 Qe7 Rad1 bxc6 Bf1 Bb7 R8d7 Qb4 Nd2 c5 Be2 Ba6 b3;
r1br2k1/pp3qpp/2n2p2/3P4/1bp5/4BNP1/PP3PBP/R2Q1RK1 w - - bm dxc6; ce 9; pv dxc6 Rxd1 Rfxd1 Bf8 Rd8 Qe7 Rad1 bxc6 a3;
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Albert Silver
- Posts: 3026
- Joined: Wed Mar 08, 2006 9:57 pm
- Location: Rio de Janeiro, Brazil
Re: Queen sacrifice
Sort of:Oratios wrote:Best resullts with Deep Junior 2010 and RybkaWinFinder 2.2 here!
Analysis by Rybka WinFinder 2.2 32-bit:
1.Nd4 Ne5
= (0.00) Depth: 6 00:00:00 6kN
1.Nd4 Ne5 2.Qa4
= (0.00) Depth: 7 00:00:01 12kN
1.Nd4 Ne5 2.Qa4 a5
= (0.00) Depth: 8 00:00:01 22kN
1.Nd4 Ne5 2.Qa4 a5 3.Ne6
= (0.00) Depth: 9 00:00:01 43kN
1.Nd4 Ne5 2.Qa4 a5 3.Ne6 Re8
= (0.00) Depth: 10 00:00:01 91kN
1.Nd4 Ne5 2.Qa4 a5 3.a3 Bd7 4.Qc2
= (0.00) Depth: 11 00:00:03 199kN
1.Nd4 Ne5 2.Qa4 a5 3.a3 Bd7 4.Qc2 Bd6
= (0.00) Depth: 12 00:00:05 406kN
1.Nd4 Ne5 2.Qa4 a5 3.a3 Bd7 4.Qc2 Bd6 5.Ne6
= (0.00) Depth: 13 00:00:08 762kN
1.dxc6
= (0.03) Depth: 13 00:00:09 762kN
1.dxc6
= (0.00) Depth: 13 00:00:09 762kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 c3 5.bxc3 Qb7
= (0.03) Depth: 13 00:00:09 790kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 c3 5.bxc3 Qe7 6.Bf1 Qe4
+/= (0.27) Depth: 14 00:00:21 2078kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 c3 5.bxc3 Qe7 6.Bf1 g5 7.Bc4+ Kg7
= (0.20) Depth: 15 00:00:27 2707kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 Qe7 5.Bf1 Bb7 6.Bxc4+ Kh8 7.R8d7 Qe4
= (0.00) Depth: 16 00:00:42 4200kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 Qe7 5.Bf1 Bb7 6.Bxc4+ Kh8 7.R8d7 Qe4
= (0.06) Depth: 17 00:02:09 12989kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 Qe7 5.Bf1 Bb7 6.Bxc4+ Kh8 7.R8d7 Qe4
= (0.00) Depth: 18 00:03:17 20052kN
1.a3 Bf8
= (0.06) Depth: 18 00:05:24 32660kN
1.a3 Bf8 2.Qa4 Rxd5 3.Qxc4 Be6 4.Rac1 Rad8 5.Rfe1 Rd2 6.Qc3 R2d3 7.Qc2 Bb3
= (0.00) Depth: 19 00:07:51 47221kN
1.dxc6
= (0.03) Depth: 19 00:07:53 47221kN
1.dxc6
= (0.00) Depth: 19 00:07:53 47221kN
1.dxc6 Rxd1 2.Raxd1 bxc6 3.Rd8+ Bf8 4.Rfd1 Qe7 5.Bf1 Bb7 6.Bxc4+ Kh8 7.R8d7 Qe4
= (0.03) Depth: 19 00:07:58 48098kN
I don't have the 64-bit of Winfinder so take off a few mins to compare with it. On the other hand...
Analysis by Fritz 12:
1.Nd4 Ne5 2.Qa4 Qe7 3.Bf4 Bc5 4.Ne6 Bxe6 5.dxe6 Qxe6 6.Bxe5 fxe5 7.Bxb7
= (0.11) Depth: 11/26 00:00:00 367kN
1.Nd4 Ne5 2.Qa4 Qe7 3.Qc2 Bg4 4.Ne6 Bxe6 5.dxe6 Qxe6 6.Bxb7 Rab8 7.Be4
= (0.12) Depth: 12/34 00:00:00 876kN
1.Nd4 Ne5 2.Qa4 Bd6 3.Qc2 Bd7 4.Ne6 Re8 5.f4 Ng4 6.Bd4 Bxe6 7.dxe6 Rxe6
= (0.17) Depth: 13/33 00:00:00 1943kN
1.Nd4 Ne5 2.Qa4 Bd6 3.Qc2 Bd7 4.Ne6 Re8 5.f4 Ng4 6.Bd4 Bxe6 7.dxe6 Rxe6 8.Qxc4
= (0.17) Depth: 14/32 00:00:01 3519kN
1.Nd4 Ne5 2.Qa4 Bd6 3.Rae1 Bd7 4.Qc2 Nd3 5.Re2 Rdc8 6.Ne6 Be5 7.Rb1 b6 8.Bd4 Bxd4
= (0.06) Depth: 15/33 00:00:03 8167kN
1.Nd4 Ne5 2.Qa4 Bd6 3.Qc2 Qh5 4.Rae1 Bg4 5.Bf4 Rac8 6.Ne6 Bf5 7.Qa4 Ng4 8.h3 Bxe6
= (0.05) Depth: 16/35 00:00:07 16360kN
1.Nd4 Ne5 2.Qa4 Be7 3.f4 Bd7 4.Qc2 Ng4 5.Rae1 Rac8 6.h3 Nxe3 7.Rxe3 Re8 8.Rfe1 Bb4 9.Rxe8+ Bxe8 10.Re3
= (0.23) Depth: 17/37 00:00:20 44614kN
1.Nd4 Ne5 2.Qa4 a5 3.Qb5 Bd7 4.Qxb7 Rdb8 5.Qc7 Rc8 6.Qb7 Rab8 7.Qa6 Ra8
= (0.00) Depth: 18/39 00:00:38 86423kN
1.dxc6 Rxd1 2.Rfxd1 Ba5 3.Nd4 a6 4.cxb7 Bxb7 5.Nc6 Bxc6 6.Bxc6 Rd8 7.Rxd8+ Bxd8 8.Rd1 Qc7 9.Bd5+ Kf8 10.Be4 Be7 11.Bxh7 Qe5 12.Rd4
+/= (0.30) Depth: 18/41 00:01:23 191mN
1.dxc6 Rxd1 2.Rfxd1 Ba5 3.Nd4 g5 4.Nb5 bxc6 5.Bxc6 Rb8 6.Nd6 Qc7 7.Bd5+ Kh8 8.Nxc4 Bg4 9.Rd4 Rd8 10.Rc1 Bb4
+/= (0.30) Depth: 19/39 00:01:31 213mN
1.dxc6 Rxd1 2.Rfxd1 Ba5 3.Nd4 g5 4.Nb5 bxc6 5.Bxc6 Rb8 6.Nd6 Qc7 7.Bd5+ Kh8 8.Nxc4 Bg4 9.Rd4 Rd8 10.Rc1 Kg7
+/= (0.41) Depth: 20/39 00:01:52 264mN
1.dxc6 Rxd1 2.Rfxd1 bxc6 3.Nd4 Bg4 4.Nxc6 Bxd1 5.Rxd1 Qh5 6.Rd7 Bf8 7.Ne7+ Bxe7 8.Bxa8 Kf8 9.Rxa7 Qe5 10.Rb7 c3
= (0.02) Depth: 21/43 00:02:34 368mN
1.dxc6 Rxd1 2.Rfxd1 bxc6 3.Nd4 Bg4 4.Nxc6 Bxd1 5.Rxd1 Qh5 6.Rd7 Bf8 7.Ne7+ Bxe7 8.Bxa8 Kf8 9.Bc6 Qe2
= (0.05) Depth: 22/44 00:08:11 1140mN
1.dxc6 Rxd1 2.Rfxd1 bxc6 3.Nd4 Bg4 4.Nxc6 Bxd1 5.Rxd1 Qh5 6.Rd7 Bf8 7.Bd5+ Kh8 8.Nd8 Qd1+ 9.Kg2 Rb8 10.Nf7+ Kg8
= (0.00) Depth: 23/45 00:12:08 1689mN
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."
-
Mike S.
- Posts: 1480
- Joined: Thu Mar 09, 2006 5:33 am
Re: Queen sacrifice
Where is the queen sacrifice? White immediatly gets knight+rook for the queen, that is only -1 by simple material counting.
In a quick blundercheck, Rybka 2.3.2a thinks that 17...a6 was bad, 1.59 instead of 0.04 after 17...g5.
[Event "Ed.Lasker mem"]
[Site "New York"]
[Date "1981.??.??"]
[Round "5"]
[White "Adorjan, Andras"]
[Black "Tisdall, Jonathan D"]
[Result "1-0"]
[ECO "D33"]
[WhiteElo "2545"]
[BlackElo "2410"]
[PlyCount "45"]
1. c4 e6 2. Nc3 c5 3. Nf3 Nc6 4. d4 d5 5. cxd5 exd5 6. g3 c4 7. Bg2 Bb4 8. O-O
Nge7 9. e4 O-O 10. exd5 Nxd5 11. Bg5 f6 12. Nxd5 Qxd5 {last book move} 13. Be3
{0.08/12} Qf7 {0.08/12} 14. d5 {0.08/15} Rd8 {0.08/13} 15. dxc6 {0.03/12} Rxd1
{0.04/15} 16. Rfxd1 {0.04/13} Ba5 {0.04/13} 17. Nd4 {0.04/14} a6 {1.59/16} ({
Rybka 2.3.2a 32-bit :} 17... g5 18. Nb5 bxc6 {0.04/14}) 18. b4 {1.59/14} Bxb4 {
1.62/14} 19. Rab1 {1.62/12} a5 {0.03/8} 20. a3 {1.62/11} bxc6 {2.06/11} ({
Rybka 2.3.2a 32-bit :} 20... Bxa3 21. cxb7 Rb8 22. bxc8=Q+ Rxc8 23. Nc2 Qf8 24.
Bd5+ Kh8 25. Nxa3 Qxa3 26. Be6 Re8 {1.62/11}) 21. axb4 {2.10/10} axb4 {3.18/14}
({Rybka 2.3.2a 32-bit :} 21... Bg4 22. Nxc6 Bxd1 23. Bd5 Bf3 24. Bxf7+ Kxf7 25.
Nxa5 c3 26. Rc1 {2.10/10}) 22. Nxc6 {3.23/12} Bg4 {3.23/13} 23. Nxb4 {1.61/11}
({Rybka 2.3.2a 32-bit :} 23. Nd8 Qh5 24. Bd5+ Kh8 25. Nf7+ Kg8 26. Ne5+ Kh8 27.
Nxg4 Re8 28. Bc6 Rg8 29. f3 {3.23/13}) 1-0
In a quick blundercheck, Rybka 2.3.2a thinks that 17...a6 was bad, 1.59 instead of 0.04 after 17...g5.
[Event "Ed.Lasker mem"]
[Site "New York"]
[Date "1981.??.??"]
[Round "5"]
[White "Adorjan, Andras"]
[Black "Tisdall, Jonathan D"]
[Result "1-0"]
[ECO "D33"]
[WhiteElo "2545"]
[BlackElo "2410"]
[PlyCount "45"]
1. c4 e6 2. Nc3 c5 3. Nf3 Nc6 4. d4 d5 5. cxd5 exd5 6. g3 c4 7. Bg2 Bb4 8. O-O
Nge7 9. e4 O-O 10. exd5 Nxd5 11. Bg5 f6 12. Nxd5 Qxd5 {last book move} 13. Be3
{0.08/12} Qf7 {0.08/12} 14. d5 {0.08/15} Rd8 {0.08/13} 15. dxc6 {0.03/12} Rxd1
{0.04/15} 16. Rfxd1 {0.04/13} Ba5 {0.04/13} 17. Nd4 {0.04/14} a6 {1.59/16} ({
Rybka 2.3.2a 32-bit :} 17... g5 18. Nb5 bxc6 {0.04/14}) 18. b4 {1.59/14} Bxb4 {
1.62/14} 19. Rab1 {1.62/12} a5 {0.03/8} 20. a3 {1.62/11} bxc6 {2.06/11} ({
Rybka 2.3.2a 32-bit :} 20... Bxa3 21. cxb7 Rb8 22. bxc8=Q+ Rxc8 23. Nc2 Qf8 24.
Bd5+ Kh8 25. Nxa3 Qxa3 26. Be6 Re8 {1.62/11}) 21. axb4 {2.10/10} axb4 {3.18/14}
({Rybka 2.3.2a 32-bit :} 21... Bg4 22. Nxc6 Bxd1 23. Bd5 Bf3 24. Bxf7+ Kxf7 25.
Nxa5 c3 26. Rc1 {2.10/10}) 22. Nxc6 {3.23/12} Bg4 {3.23/13} 23. Nxb4 {1.61/11}
({Rybka 2.3.2a 32-bit :} 23. Nd8 Qh5 24. Bd5+ Kh8 25. Nf7+ Kg8 26. Ne5+ Kh8 27.
Nxg4 Re8 28. Bc6 Rg8 29. f3 {3.23/13}) 1-0
Regards, Mike