In the rybka forum some guy put a post where normal computer programs cannot see in reasonable time whilst Rybka winfinder could find in 20 seconds. If it is indeed true that the correspondence player who made the move did not use comptuter assistance then we have the rare occurrence of a sac that computers cannot see. (The move is black's stunning 19th move.)
Here is the original post in the rybka forum
Here is the fen of the move :- [d]r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q - 0 1
This is the full game [Event "Game from non-PGN file"]
[Site "TalkChess"]
[Date "2007.09.15"]
[Round "-"]
[White "?"]
[Black "?"]
[Result "0-1"]
1. e4 e6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. Bb5 Qb6 6. Nc3 cxd4 7. Nxd4 Bd7 8.
Bxc6 bxc6 9. O-O c5 10. Nf3 Ne7 11. Ne2 Nf5 12. c3 Be7 13. b3 a5 14. c4 d4
15. Bg5 f6 16. exf6 gxf6 17. Bf4 Rg8 18. h3 e5 19. Bh2 Rxg2+ 20. Kxg2 Qb7
21. Bg3 Qxf3+ 22. Kxf3 Bc6+ 23. Kg4 Nh6+ 24. Kh5 Bf3+ 25. Kxh6 Bf8+ 26.
Kxh7 Be4+ 27. Kg8 Ke7
0-1
A sac that computers cannot see?
Moderator: Ras
-
Bryan Hofmann
Re: A sac that computers cannot see?
Strelka_1.8_UCI:
1 00:00 18 0 +0.70 Ke8f7
2 00:00 448 0 +0.63 e5e4 Nf3d2
3 00:00 618 0 +0.75 e5e4 Nf3d2 d4d3
4 00:00 1.374 0 +0.67 e5e4 Nf3d2 d4d3 Ne2c3
5 00:00 7.686 0 +0.80 e5e4 Nf3d2 e4e3 Nd2e4 Nf5h4
6 00:00 69.955 2.256.612 +1.06 Qb6b7 Ne2g3 Bd7c6 Kg1h1 Bc6xf3 g2xf3 Qb7d7 Ng3xf5 Qd7xf5
7 00:00 90.140 1.959.565 +0.87 Qb6b7 Ne2g3 Bd7c6 Kg1h1 Bc6xf3 g2xf3 Nf5h4 Ng3e4
8 00:00 147.641 1.892.833 +0.96 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 Bh2xg3 Ke8f7 Qd1h5+ Kf7g7 Qh5g4+ Kg7h6
9 00:00 279.729 1.998.064 +0.94 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 Bh2xg3 Ke8f7 Qd1h5+ Kf7g7 Qh5g4+ Kg7h8 Qg4f5
10 00:00 507.869 1.916.486 +0.94 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 Bh2xg3 Ke8f7 Qd1h5+ Kf7g7 Ra1d1 Bc6e4 Qh5g4+ Kg7h6
11 00:00 1.296.771 1.932.594 +1.00 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 f2xg3 a5a4 b3xa4 Ra8xa4 Qd1h5+ Rg8g6 Qh5xh7 Bc6e4
12 00:01 2.310.838 1.946.788 +0.98 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 f2xg3 a5a4 Ra1b1 a4xb3 Qd1h5+ Ke8d7 Rb1xb3 Qb7a6 Qh5f5+ Kd7d6
13 00:03 4.909.331 1.963.732 +1.01 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 f2xg3 a5a4 Qd1h5+ Rg8g6 Qh5xh7 Bc6e4 Ne1f3 a4xb3 a2xb3 Ra8xa1 Rf1xa1 Qb7xb3
14 00:10 20.678.735 2.051.868 +1.46 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Bh2g1 Ke8f7 Ng3e4 a4xb3 a2xb3
15 00:16 26.814.706 2.090.326 +1.48 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Ng3e4 f6f5 Ne4g3 Ke8f7
16 00:29 55.808.493 2.133.678 +1.84 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Ra1c1 Ke8f7 Rd1d3 a4xb3 Rd3xb3 Bh3g4
17 00:51 99.926.990 2.159.883 +1.97 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Bh2g1 Ke8f7 Bg1h2 Bh3g4 Bh2g1 Ra8g8
18 02:01 187.345.067 2.210.978 +1.76 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1g2 Nf3h4+ Kg2g1 Bd7xh3 Rf1d1 Nh4f3+ Kg1h1 a5a4 Rd1d3 Bh3g4 Ra1c1 Ke8f7 Kh1g2 Nf3xh2 Kg2xh2 a4xb3 a2xb3
19 04:29 384.727.155 2.226.675 +1.76 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1g2 Nf3h4+ Kg2g1 Bd7xh3 Rf1d1 Nh4f3+ Kg1h1 a5a4 Rd1d3 Bh3g4 Ra1c1 a4xb3 a2xb3 Ke8f7 Kh1g2 Nf3xh2 Kg2xh2
1 00:00 18 0 +0.70 Ke8f7
2 00:00 448 0 +0.63 e5e4 Nf3d2
3 00:00 618 0 +0.75 e5e4 Nf3d2 d4d3
4 00:00 1.374 0 +0.67 e5e4 Nf3d2 d4d3 Ne2c3
5 00:00 7.686 0 +0.80 e5e4 Nf3d2 e4e3 Nd2e4 Nf5h4
6 00:00 69.955 2.256.612 +1.06 Qb6b7 Ne2g3 Bd7c6 Kg1h1 Bc6xf3 g2xf3 Qb7d7 Ng3xf5 Qd7xf5
7 00:00 90.140 1.959.565 +0.87 Qb6b7 Ne2g3 Bd7c6 Kg1h1 Bc6xf3 g2xf3 Nf5h4 Ng3e4
8 00:00 147.641 1.892.833 +0.96 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 Bh2xg3 Ke8f7 Qd1h5+ Kf7g7 Qh5g4+ Kg7h6
9 00:00 279.729 1.998.064 +0.94 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 Bh2xg3 Ke8f7 Qd1h5+ Kf7g7 Qh5g4+ Kg7h8 Qg4f5
10 00:00 507.869 1.916.486 +0.94 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 Bh2xg3 Ke8f7 Qd1h5+ Kf7g7 Ra1d1 Bc6e4 Qh5g4+ Kg7h6
11 00:00 1.296.771 1.932.594 +1.00 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 f2xg3 a5a4 b3xa4 Ra8xa4 Qd1h5+ Rg8g6 Qh5xh7 Bc6e4
12 00:01 2.310.838 1.946.788 +0.98 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 f2xg3 a5a4 Ra1b1 a4xb3 Qd1h5+ Ke8d7 Rb1xb3 Qb7a6 Qh5f5+ Kd7d6
13 00:03 4.909.331 1.963.732 +1.01 Qb6b7 Ne2g3 Bd7c6 Nf3e1 Nf5xg3 f2xg3 a5a4 Qd1h5+ Rg8g6 Qh5xh7 Bc6e4 Ne1f3 a4xb3 a2xb3 Ra8xa1 Rf1xa1 Qb7xb3
14 00:10 20.678.735 2.051.868 +1.46 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Bh2g1 Ke8f7 Ng3e4 a4xb3 a2xb3
15 00:16 26.814.706 2.090.326 +1.48 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Ng3e4 f6f5 Ne4g3 Ke8f7
16 00:29 55.808.493 2.133.678 +1.84 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Ra1c1 Ke8f7 Rd1d3 a4xb3 Rd3xb3 Bh3g4
17 00:51 99.926.990 2.159.883 +1.97 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1h1 Bd7xh3 Rf1d1 a5a4 Bh2g1 Ke8f7 Bg1h2 Bh3g4 Bh2g1 Ra8g8
18 02:01 187.345.067 2.210.978 +1.76 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1g2 Nf3h4+ Kg2g1 Bd7xh3 Rf1d1 Nh4f3+ Kg1h1 a5a4 Rd1d3 Bh3g4 Ra1c1 Ke8f7 Kh1g2 Nf3xh2 Kg2xh2 a4xb3 a2xb3
19 04:29 384.727.155 2.226.675 +1.76 Rg8xg2+ Kg1xg2 Qb6b7 Kg2g1 Qb7xf3 Ne2g3 Nf5h4 Qd1xf3 Nh4xf3+ Kg1g2 Nf3h4+ Kg2g1 Bd7xh3 Rf1d1 Nh4f3+ Kg1h1 a5a4 Rd1d3 Bh3g4 Ra1c1 a4xb3 a2xb3 Ke8f7 Kh1g2 Nf3xh2 Kg2xh2
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playjunior
- Posts: 338
- Joined: Fri Jun 22, 2007 12:53 am
Re: A sac that computers cannot see?
Glaurung 1.2.1 found it in 2 minutes.
It is really a nice tactical engine!
It is really a nice tactical engine!
-
Eelco de Groot
- Posts: 4680
- Joined: Sun Mar 12, 2006 2:40 am
- Full name: Eelco de Groot
Re: A sac that computers cannot see?
Toga 1.3.4 Default needs 27 minutes, but Toga Checkov does a bit better, inside of three minutes
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q -
Engine: Toga II 1.3.4 Default bitbases (256 MB)
by Thomas Gaksch and Fabien Letouzey
9/28 0:02 +1.04 19...a4 20.Qc2 Qa6 21.Rad1 axb3
22.axb3 Qb7 23.Ng3 Nxg3 24.Bxg3 e4
25.Nh4 (1.325.669) 605
10/36 0:04 +1.06 19...a4 20.Qc2 Qa6 21.Rab1 axb3
22.axb3 Qe6 23.Ng3 Bc6 24.Ne4 Kf7
25.Ra1 (2.726.219) 620
10/36 0:05 +1.11 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qh5+ Kg7 24.Rd1 Kh8
25.Nf3 Bxf3 26.Qxf3 Qxf3 27.gxf3 (3.192.887) 624
11/43 0:06 +1.16 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qh5+ Kg7 24.Rd1 a4
25.Rd3 axb3 26.Rxb3 Qc7 (4.306.989) 628
12/44 0:12 +1.30 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Rb1 Kg7 24.Rb2 Kh8
25.Nf3 Bxf3 26.Qxf3 Qxf3 27.gxf3 (8.086.771) 640
13/44 0:17 +1.23 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 a4 23.Qh5+ Rg6 24.Qxh7 Be4
25.Nf3 axb3 26.axb3 Rxa1 27.Rxa1 Qxb3 (11.571.694) 644
14/46 0:32 +1.17 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 a4 23.Qh5+ Rg6 24.Qxh7 Be4
25.Nf3 axb3 26.axb3 Rxa1 27.Rxa1 Qxb3
28.Ra8+ Bxa8 29.Qxg6+ Kf8 (21.526.379) 659
15/56 1:43 +1.19 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 Be4 23.Nf3 a4 24.bxa4 Qb2
25.Rf2 Qc3 26.g4 Bxf3 27.Rxf3 Qxc4
28.Rb1 Rxa4 (68.611.328) 660
16/60 4:04 +1.10 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 Be4 23.Nf3 a4 24.bxa4 Qb2
25.Nd2 Bc2 26.Qf3 Rxa4 27.Qc6+ Kf7
28.Ne4 Bxe4 29.Qxe4 (164.914.848) 675
16/80 19:01 +1.48 19...a4 20.Qc2 Rxg2+ 21.Kxg2 Qb7
22.Bg3 d3 23.Qxd3 e4 24.Qc2 exf3+
25.Kh2 fxe2 26.Qxe2 Nd4 27.Qh5+ Kf8
28.Bf4 Kg7 29.Rfd1 Qe4 30.Bh6+ Kh8
31.Qd5 (752.521.119) 659
16/80 27:42 +2.31++ 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Kg2 d3 29.Ne3 Nxh2 30.Kxh2 (1.123.991.776) 676
17/80 29:46 +2.35 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Kg2 Rg8 29.Ng3 Nxh2 30.Kxh2 (1.213.223.006) 679
18/80 34:57 +2.43 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Bg3 Rg8 29.Rd1 h5 30.Nd2 (1.439.099.217) 685
19/83 46:39 +2.54 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Rb2 Rg8 29.a3 Bh3 30.Ng3 (1.948.623.185) 696
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q -
Engine: Toga II 1.3.4 Checkov 2c bitbases (256 MB, Athlon 2009 MHz)
by Thomas Gaksch and Fabien Letouzey
8/26 0:00 +0.70 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qh5+ Kg7 24.Bh4 (177.617)
9/33 0:00 +0.91 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qe2 Kg7 24.Rd1 (471.330)
10/36 0:01 +0.93 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qd3 Be4 24.Qe2 Bd6 (800.884) 623
10/44 0:08 +0.98 19...a4 20.Qc2 Qe6 21.Nd2 Bc6 22.Ng3 Nxg3
23.Bxg3 f5 24.Qd3 axb3 25.axb3 Rxa1
26.Rxa1 (4.833.841) 602
11/44 0:09 +1.03 19...a4 20.Qc2 Qe6 21.Nd2 Bc6 22.Bg3 Nxg3
23.Nxg3 f5 24.Rfe1 Bh4 25.Rad1 Bxg3
26.fxg3 Rxg3 (6.008.118) 608
12/44 0:16 +0.96 19...a4 20.Qc2 Qe6 21.Ng3 Nxg3
22.Bxg3 Qf5 23.Qe2 d3 24.Qd2 Bc6
25.Nh4 Qd7 26.Rab1 axb3 27.Rxb3 (10.184.037) 621
12/44 0:17 +1.16 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qd3 Kg7 24.Rd1 Be4
25.Qe2 Kh8 (10.778.434) 621
13/44 0:20 +1.15 19...Qb7 20.Ng3 Bc6 21.Ne1 Kf8
22.Nxf5 Bxg2 23.Bg3 Bxf1 24.Qh5 Rg5
25.Qh6+ Kg8 26.Nxe7+ Qxe7 27.Kxf1 (13.040.491) 625
14/53 0:31 +1.17 19...Qb7 20.Ng3 Bc6 21.Ne1 Kf8
22.Nxf5 Bxg2 23.Ng3 Bxh3 24.Qh5 Bxf1
25.Kxf1 a4 26.Rb1 Kg7 27.Nf5+ Kh8 (20.005.492) 637
15/53 0:51 +1.16 19...Qb7 20.Ng3 Bc6 21.Ne1 Kf8
22.Qd2 Nxg3 23.fxg3 Kg7 24.g4 Kh8
25.Nd3 e4 26.Ne5 e3 27.Qe2 fxe5
28.Bxe5+ Rg7 29.Bxg7+ Kxg7 30.Qc2 (33.590.520) 648
15/61 2:41 +1.78++ 19...Rxg2+ 20.Kxg2 Qb7 21.Neg1 Nh4+
22.Kh1 Bc6 23.Qd3 Bxf3+ 24.Nxf3 Nxf3
25.Qe2 Nd2+ 26.Kg1 Nxf1 27.Rxf1 a4
28.Rb1 Kf8 29.Bg3 Bd6 30.Qg4 axb3
31.Rxb3 (107.681.592) 665
16/61 3:07 +1.82 19...Rxg2+ 20.Kxg2 Qb7 21.Neg1 Nh4+
22.Kh1 Bc6 23.Qd3 Bxf3+ 24.Nxf3 Nxf3
25.Qe2 Kf7 26.Bg3 Rg8 27.Rg1 Nxg1+
28.Kxg1 Kg7 29.Rd1 Kh8 30.Qd3 Qb4 (125.531.087) 670
17/72 7:10 +2.32++ 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 a4 26.Bg1 axb3 27.axb3 Rxa1
28.Rxa1 Bg4 29.Ne4 f5 30.Ng3 d3
31.Kg2 (299.368.237) 695
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q -
Engine: Toga II 1.3.4 Default bitbases (256 MB)
by Thomas Gaksch and Fabien Letouzey
9/28 0:02 +1.04 19...a4 20.Qc2 Qa6 21.Rad1 axb3
22.axb3 Qb7 23.Ng3 Nxg3 24.Bxg3 e4
25.Nh4 (1.325.669) 605
10/36 0:04 +1.06 19...a4 20.Qc2 Qa6 21.Rab1 axb3
22.axb3 Qe6 23.Ng3 Bc6 24.Ne4 Kf7
25.Ra1 (2.726.219) 620
10/36 0:05 +1.11 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qh5+ Kg7 24.Rd1 Kh8
25.Nf3 Bxf3 26.Qxf3 Qxf3 27.gxf3 (3.192.887) 624
11/43 0:06 +1.16 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qh5+ Kg7 24.Rd1 a4
25.Rd3 axb3 26.Rxb3 Qc7 (4.306.989) 628
12/44 0:12 +1.30 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Rb1 Kg7 24.Rb2 Kh8
25.Nf3 Bxf3 26.Qxf3 Qxf3 27.gxf3 (8.086.771) 640
13/44 0:17 +1.23 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 a4 23.Qh5+ Rg6 24.Qxh7 Be4
25.Nf3 axb3 26.axb3 Rxa1 27.Rxa1 Qxb3 (11.571.694) 644
14/46 0:32 +1.17 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 a4 23.Qh5+ Rg6 24.Qxh7 Be4
25.Nf3 axb3 26.axb3 Rxa1 27.Rxa1 Qxb3
28.Ra8+ Bxa8 29.Qxg6+ Kf8 (21.526.379) 659
15/56 1:43 +1.19 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 Be4 23.Nf3 a4 24.bxa4 Qb2
25.Rf2 Qc3 26.g4 Bxf3 27.Rxf3 Qxc4
28.Rb1 Rxa4 (68.611.328) 660
16/60 4:04 +1.10 19...Bc6 20.Ng3 Qb7 21.Ne1 Nxg3
22.fxg3 Be4 23.Nf3 a4 24.bxa4 Qb2
25.Nd2 Bc2 26.Qf3 Rxa4 27.Qc6+ Kf7
28.Ne4 Bxe4 29.Qxe4 (164.914.848) 675
16/80 19:01 +1.48 19...a4 20.Qc2 Rxg2+ 21.Kxg2 Qb7
22.Bg3 d3 23.Qxd3 e4 24.Qc2 exf3+
25.Kh2 fxe2 26.Qxe2 Nd4 27.Qh5+ Kf8
28.Bf4 Kg7 29.Rfd1 Qe4 30.Bh6+ Kh8
31.Qd5 (752.521.119) 659
16/80 27:42 +2.31++ 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Kg2 d3 29.Ne3 Nxh2 30.Kxh2 (1.123.991.776) 676
17/80 29:46 +2.35 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Kg2 Rg8 29.Ng3 Nxh2 30.Kxh2 (1.213.223.006) 679
18/80 34:57 +2.43 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Bg3 Rg8 29.Rd1 h5 30.Nd2 (1.439.099.217) 685
19/83 46:39 +2.54 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 f5 26.Nf1 Bg4 27.Rdb1 Kf7
28.Rb2 Rg8 29.a3 Bh3 30.Ng3 (1.948.623.185) 696
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q -
Engine: Toga II 1.3.4 Checkov 2c bitbases (256 MB, Athlon 2009 MHz)
by Thomas Gaksch and Fabien Letouzey
8/26 0:00 +0.70 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qh5+ Kg7 24.Bh4 (177.617)
9/33 0:00 +0.91 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qe2 Kg7 24.Rd1 (471.330)
10/36 0:01 +0.93 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qd3 Be4 24.Qe2 Bd6 (800.884) 623
10/44 0:08 +0.98 19...a4 20.Qc2 Qe6 21.Nd2 Bc6 22.Ng3 Nxg3
23.Bxg3 f5 24.Qd3 axb3 25.axb3 Rxa1
26.Rxa1 (4.833.841) 602
11/44 0:09 +1.03 19...a4 20.Qc2 Qe6 21.Nd2 Bc6 22.Bg3 Nxg3
23.Nxg3 f5 24.Rfe1 Bh4 25.Rad1 Bxg3
26.fxg3 Rxg3 (6.008.118) 608
12/44 0:16 +0.96 19...a4 20.Qc2 Qe6 21.Ng3 Nxg3
22.Bxg3 Qf5 23.Qe2 d3 24.Qd2 Bc6
25.Nh4 Qd7 26.Rab1 axb3 27.Rxb3 (10.184.037) 621
12/44 0:17 +1.16 19...Qb7 20.Ng3 Bc6 21.Ne1 Nxg3
22.Bxg3 Kf7 23.Qd3 Kg7 24.Rd1 Be4
25.Qe2 Kh8 (10.778.434) 621
13/44 0:20 +1.15 19...Qb7 20.Ng3 Bc6 21.Ne1 Kf8
22.Nxf5 Bxg2 23.Bg3 Bxf1 24.Qh5 Rg5
25.Qh6+ Kg8 26.Nxe7+ Qxe7 27.Kxf1 (13.040.491) 625
14/53 0:31 +1.17 19...Qb7 20.Ng3 Bc6 21.Ne1 Kf8
22.Nxf5 Bxg2 23.Ng3 Bxh3 24.Qh5 Bxf1
25.Kxf1 a4 26.Rb1 Kg7 27.Nf5+ Kh8 (20.005.492) 637
15/53 0:51 +1.16 19...Qb7 20.Ng3 Bc6 21.Ne1 Kf8
22.Qd2 Nxg3 23.fxg3 Kg7 24.g4 Kh8
25.Nd3 e4 26.Ne5 e3 27.Qe2 fxe5
28.Bxe5+ Rg7 29.Bxg7+ Kxg7 30.Qc2 (33.590.520) 648
15/61 2:41 +1.78++ 19...Rxg2+ 20.Kxg2 Qb7 21.Neg1 Nh4+
22.Kh1 Bc6 23.Qd3 Bxf3+ 24.Nxf3 Nxf3
25.Qe2 Nd2+ 26.Kg1 Nxf1 27.Rxf1 a4
28.Rb1 Kf8 29.Bg3 Bd6 30.Qg4 axb3
31.Rxb3 (107.681.592) 665
16/61 3:07 +1.82 19...Rxg2+ 20.Kxg2 Qb7 21.Neg1 Nh4+
22.Kh1 Bc6 23.Qd3 Bxf3+ 24.Nxf3 Nxf3
25.Qe2 Kf7 26.Bg3 Rg8 27.Rg1 Nxg1+
28.Kxg1 Kg7 29.Rd1 Kh8 30.Qd3 Qb4 (125.531.087) 670
17/72 7:10 +2.32++ 19...Rxg2+ 20.Kxg2 Qb7 21.Kg1 Qxf3
22.Ng3 Nh4 23.Qxf3 Nxf3+ 24.Kh1 Bxh3
25.Rfd1 a4 26.Bg1 axb3 27.axb3 Rxa1
28.Rxa1 Bg4 29.Ne4 f5 30.Ng3 d3
31.Kg2 (299.368.237) 695
-
Vinvin
- Posts: 5302
- Joined: Thu Mar 09, 2006 9:40 am
- Full name: Vincent Lejeune
Re: A sac that computers cannot see?
I think this one, who seems a bit beacause it's a sac on g7/g2 pawn shelter, is even harder :
Vescovi G.,2455 - Gschwendtner S.,2270, Groningen (open) 1994
[d]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - -
Rxg7+!!
How much for time for your favorite engine on fast computer ?
[Event "hard CCC 2006"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Pos 34"]
[Black "Aemis Test Suite No.30"]
[Result "1-0"]
[Annotator "Vinvin"]
[SetUp "1"]
[FEN "1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1"]
[PlyCount "35"]
{Vescovi G.,2455 - Gschwendtner S.,2270, Groningen (open) 1994} 1. Rxg7+ $1
Kxg7 2. h6+ Kf8 3. Qf6 {Toga II 1.2 Beta2a: 1)} Bd7 ({Toga II 1.2 Beta2a: 2)}
3... Bd7 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Ra8 8. cxd8=Q+ Rxd8 9. Nd4
axb2 10. Nxe6 Rd6 11. Nc7+ Kd7 12. Qg7 Qe7 13. Nxb5 Rd2 14. Qxh7 {
[%eval 543,14]}) 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Ra8 8. cxd8=Q+ Rxd8
9. Nd4 Rd7 10. Rg7 Qh8 11. Qg5 Rxd4 12. Rg8+ Qxg8 13. Qxg8+ Ke7 14. Qg5+ Kd6
15. Qd8+ Kc5 16. Qc7+ Kd5 17. Qxf7 axb2 18. Kxb2 {[%eval 548,15]} 1-0[/u]
Vescovi G.,2455 - Gschwendtner S.,2270, Groningen (open) 1994
[d]1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - -
Rxg7+!!
How much for time for your favorite engine on fast computer ?
[Event "hard CCC 2006"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Pos 34"]
[Black "Aemis Test Suite No.30"]
[Result "1-0"]
[Annotator "Vinvin"]
[SetUp "1"]
[FEN "1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - 0 1"]
[PlyCount "35"]
{Vescovi G.,2455 - Gschwendtner S.,2270, Groningen (open) 1994} 1. Rxg7+ $1
Kxg7 2. h6+ Kf8 3. Qf6 {Toga II 1.2 Beta2a: 1)} Bd7 ({Toga II 1.2 Beta2a: 2)}
3... Bd7 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Ra8 8. cxd8=Q+ Rxd8 9. Nd4
axb2 10. Nxe6 Rd6 11. Nc7+ Kd7 12. Qg7 Qe7 13. Nxb5 Rd2 14. Qxh7 {
[%eval 543,14]}) 4. exd5 Bc6 5. Rg1 Ke8 6. dxc6 Qf8 7. c7 Ra8 8. cxd8=Q+ Rxd8
9. Nd4 Rd7 10. Rg7 Qh8 11. Qg5 Rxd4 12. Rg8+ Qxg8 13. Qxg8+ Ke7 14. Qg5+ Kd6
15. Qd8+ Kc5 16. Qc7+ Kd5 17. Qxf7 axb2 18. Kxb2 {[%eval 548,15]} 1-0[/u]
-
Tobias Lagemann
Re: A sac that computers cannot see?
Hi Vincent,
SlowChess Blitz WV 2.1 (AMD 1.5Ghz, 128MB HT):
2 00:00 2.001 0 +0,04 Dh4g5 Db4f8 e4xd5 a3xb2 Kb1xb2 e6xd5 Td1xd5
3 00:00 3.950 0 +0,04 Dh4g5 Db4f8 e4xd5 a3xb2 Kb1xb2 e6xd5 Td1xd5
3 00:00 5.679 0 +0,12 b2xa3 Db4xa3 Dh4g5 Da3f8 e4xd5 e6xd5 Td1xd5
4 00:00 11.499 0 +0,12 b2xa3 Db4xa3 Dh4g5 Da3f8 e4xd5 e6xd5 Td1xd5
4+ 00:00 16.679 0 +0,12 Dh4g5
4 00:00 26.745 534.900 +0,28 Dh4g5 g7g6 b2xa3 Db4xa3 e4xd5 e6xd5 h5xg6 f7xg6 Td1xd5
5 00:00 48.673 442.481 +0,28 Dh4g5 g7g6 b2xa3 Db4xa3 e4xd5 e6xd5 h5xg6 f7xg6 Td1xd5
6 00:00 110.789 503.586 +0,28 Dh4g5 g7g6 b2xa3 Db4xa3 e4xd5 e6xd5 Td1xd5
7 00:00 350.661 584.435 +0,28 Dh4g5 Db4f8 h5h6 g7g6 b2xa3 f7f6 Dg5f4
8 00:01 794.838 602.150 +0,32 Dh4g5 Db4f8 h5h6 g7g6 b2xa3 f7f6 Dg5g4 d5xe4 f3xe4 Df8xh6 Dg4xe6+ Kg8g7
9 00:03 2.273.553 617.813 0,00 Dh4g5 Db4f8 h5h6 g7g6 e4xd5 a3xb2 d5xe6 Td8xd1+ Tg1xd1 f7xe6 Kb1xb2 Df8xf3
9+ 00:07 4.725.719 632.626 0,00 Td1d4
9 00:08 5.293.428 625.700 +0,24 Td1d4 Db4f8 e4xd5 Td8xd5 Td4xd5 e6xd5 b2xa3 Kg8h8 h5h6 g7xh6
10 00:12 7.536.941 626.512 +0,28 Td1d4 Db4f8 e4xd5 Td8xd5 Td4xd5 e6xd5 b2xa3 Kg8h8 Dh4b4 Df8g8
11 00:22 14.244.845 650.152 +0,24 Td1d4 Db4f8 e4xd5 Td8xd5 Td4xd5 e6xd5 b2xa3 Tb8a8 Dh4g5 Kg8h8 h5h6 g7xh6
12 01:09 45.580.583 658.108 +0,16 Td1d4 Db4f8 b2xa3 Df8xa3 Dh4f6 Da3f8 e4xd5 Td8xd5 Tg1xg7+ Df8xg7 Td4g4 Dg7xg4 f3xg4 Td5d1+ Kb1b2 Le8c6
12+ 02:03 82.902.916 670.247 +0,16 Dh4f6
12 02:09 86.722.989 667.356 +0,20 Dh4f6 Db4f8 b2xa3 Tb8a8 e4xd5 Td8xd5 Td1xd5 e6xd5 Df6e5 Ta8xa3 De5xd5 Ta3a6 Sb3c5
13 03:54 157.438.934 672.069 +0,20 Dh4f6 Db4f8 b2xa3 Tb8a8 e4xd5 Td8xd5 Td1xd5 e6xd5 Df6e5 Ta8xa3 De5xd5 Ta3a6 Sb3c5 Ta6d6
14 10:21 420.106.807 676.032 +0,28 Dh4f6 Db4f8 e4xd5 e6xd5 b2xa3 Kg8h8 Df6f4 Tb8b6 Tg1g5 h7h6 Tg5xd5 Td8xd5 Td1xd5 Df8xa3 Sb3c5
14+ 13:26 550.775.159 682.759 +0,28 Tg1xg7+
14 14:43 607.680.146 687.739 +3,96 Tg1xg7+ Kg8xg7 h5h6+ Kg7f8 Dh4f6 Le8d7 b2xa3 Db4d6 Td1g1 Kf8e8 Tg1g8+ Dd6f8 Tg8xf8+ Ke8xf8 Sb3c5 Kf8e8 Sc5xd7 Ke8xd7 Df6xf7+ Kd7d6 Df7xh7
15 19:33 826.582.787 704.481 +5,68 Tg1xg7+ Kg8xg7 h5h6+ Kg7f8 Dh4f6 Le8c6 c2c3 Db4c4 Td1g1 Kf8e8 Tg1g7 Dc4d3+ Kb1c1 a3xb2+ Kc1xb2 Dd3e2+ Kb2c1 De2e3+ Kc1c2 De3xf3 Df6xf3 Tb8b7 e4e5 Tb7a7
I'm a fan of SlowChess ...
SlowChess Blitz WV 2.1 (AMD 1.5Ghz, 128MB HT):
2 00:00 2.001 0 +0,04 Dh4g5 Db4f8 e4xd5 a3xb2 Kb1xb2 e6xd5 Td1xd5
3 00:00 3.950 0 +0,04 Dh4g5 Db4f8 e4xd5 a3xb2 Kb1xb2 e6xd5 Td1xd5
3 00:00 5.679 0 +0,12 b2xa3 Db4xa3 Dh4g5 Da3f8 e4xd5 e6xd5 Td1xd5
4 00:00 11.499 0 +0,12 b2xa3 Db4xa3 Dh4g5 Da3f8 e4xd5 e6xd5 Td1xd5
4+ 00:00 16.679 0 +0,12 Dh4g5
4 00:00 26.745 534.900 +0,28 Dh4g5 g7g6 b2xa3 Db4xa3 e4xd5 e6xd5 h5xg6 f7xg6 Td1xd5
5 00:00 48.673 442.481 +0,28 Dh4g5 g7g6 b2xa3 Db4xa3 e4xd5 e6xd5 h5xg6 f7xg6 Td1xd5
6 00:00 110.789 503.586 +0,28 Dh4g5 g7g6 b2xa3 Db4xa3 e4xd5 e6xd5 Td1xd5
7 00:00 350.661 584.435 +0,28 Dh4g5 Db4f8 h5h6 g7g6 b2xa3 f7f6 Dg5f4
8 00:01 794.838 602.150 +0,32 Dh4g5 Db4f8 h5h6 g7g6 b2xa3 f7f6 Dg5g4 d5xe4 f3xe4 Df8xh6 Dg4xe6+ Kg8g7
9 00:03 2.273.553 617.813 0,00 Dh4g5 Db4f8 h5h6 g7g6 e4xd5 a3xb2 d5xe6 Td8xd1+ Tg1xd1 f7xe6 Kb1xb2 Df8xf3
9+ 00:07 4.725.719 632.626 0,00 Td1d4
9 00:08 5.293.428 625.700 +0,24 Td1d4 Db4f8 e4xd5 Td8xd5 Td4xd5 e6xd5 b2xa3 Kg8h8 h5h6 g7xh6
10 00:12 7.536.941 626.512 +0,28 Td1d4 Db4f8 e4xd5 Td8xd5 Td4xd5 e6xd5 b2xa3 Kg8h8 Dh4b4 Df8g8
11 00:22 14.244.845 650.152 +0,24 Td1d4 Db4f8 e4xd5 Td8xd5 Td4xd5 e6xd5 b2xa3 Tb8a8 Dh4g5 Kg8h8 h5h6 g7xh6
12 01:09 45.580.583 658.108 +0,16 Td1d4 Db4f8 b2xa3 Df8xa3 Dh4f6 Da3f8 e4xd5 Td8xd5 Tg1xg7+ Df8xg7 Td4g4 Dg7xg4 f3xg4 Td5d1+ Kb1b2 Le8c6
12+ 02:03 82.902.916 670.247 +0,16 Dh4f6
12 02:09 86.722.989 667.356 +0,20 Dh4f6 Db4f8 b2xa3 Tb8a8 e4xd5 Td8xd5 Td1xd5 e6xd5 Df6e5 Ta8xa3 De5xd5 Ta3a6 Sb3c5
13 03:54 157.438.934 672.069 +0,20 Dh4f6 Db4f8 b2xa3 Tb8a8 e4xd5 Td8xd5 Td1xd5 e6xd5 Df6e5 Ta8xa3 De5xd5 Ta3a6 Sb3c5 Ta6d6
14 10:21 420.106.807 676.032 +0,28 Dh4f6 Db4f8 e4xd5 e6xd5 b2xa3 Kg8h8 Df6f4 Tb8b6 Tg1g5 h7h6 Tg5xd5 Td8xd5 Td1xd5 Df8xa3 Sb3c5
14+ 13:26 550.775.159 682.759 +0,28 Tg1xg7+
14 14:43 607.680.146 687.739 +3,96 Tg1xg7+ Kg8xg7 h5h6+ Kg7f8 Dh4f6 Le8d7 b2xa3 Db4d6 Td1g1 Kf8e8 Tg1g8+ Dd6f8 Tg8xf8+ Ke8xf8 Sb3c5 Kf8e8 Sc5xd7 Ke8xd7 Df6xf7+ Kd7d6 Df7xh7
15 19:33 826.582.787 704.481 +5,68 Tg1xg7+ Kg8xg7 h5h6+ Kg7f8 Dh4f6 Le8c6 c2c3 Db4c4 Td1g1 Kf8e8 Tg1g7 Dc4d3+ Kb1c1 a3xb2+ Kc1xb2 Dd3e2+ Kb2c1 De2e3+ Kc1c2 De3xf3 Df6xf3 Tb8b7 e4e5 Tb7a7
I'm a fan of SlowChess ...
-
M ANSARI
- Posts: 3733
- Joined: Thu Mar 16, 2006 7:10 pm
Re: A sac that computers cannot see?
Rybka Winfinder 64bit finds it in less than 2 seconds on fast Quadcore.
-
Chris Taylor
Re: A sac that computers cannot see?
AMD dual 4600
New game
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q - 0 1
Analysis by CM9000 R1:
1...a4 2.Qc2 Rb8 3.Rab1 axb3 4.Rxb3
µ (-1.25) Depth: 3 00:00:00
µ (-1.09) Depth: 5 00:00:00
1...Qc6 2.Ng3 Nxg3 3.Bxg3 Bf5 4.Qe2 Rd8
µ (-1.20) Depth: 5 00:00:00
µ (-1.29) Depth: 6 00:00:00 41kN
1...a4 2.Qd3 axb3 3.axb3 Ra5 4.Ng3 Nxg3 5.Bxg3
-+ (-1.43) Depth: 6 00:00:00 60kN
µ (-0.97) Depth: 7 00:00:00 113kN
1...Qc6 2.Ng3 Nxg3 3.Bxg3 Bf5 4.Nh4 Be4 5.Re1
µ (-1.16) Depth: 7 00:00:00 144kN
1...Qb7 2.Ng3 Bc6 3.Re1 Bxf3 4.gxf3 Rd8 5.Qd3 Nh4
µ (-1.26) Depth: 7 00:00:00 213kN
µ (-1.19) Depth: 8 00:00:01 413kN
1...a4 2.Qc2 Qa7 3.Rac1 axb3 4.axb3 Qb7 5.Ng3 Nxg3 6.Bxg3 e4 7.Nd2
µ (-1.28) Depth: 8 00:00:01 725kN
µ (-1.04) Depth: 11 00:00:32 13577kN
1...Qb7 2.Ng3 Bc6 3.Ne1 Nxg3 4.Bxg3 0-0-0 5.Rc1 Be4 6.Qe2 a4 7.f3 Bf5
µ (-1.24) Depth: 11 00:00:40 17131kN
µ (-1.39) Depth: 12 00:00:57 24387kN
1...a4 2.Ng3 axb3 3.Qxb3 Qb4 4.Qc2 Qa4 5.Qe4 Qc6 6.Qb1 Nxg3 7.Bxg3 e4
-+ (-1.48) Depth: 12 00:01:59 49762kN
1...Rxg2+ 2.Kxg2 Qb7 3.Kg1 Qxf3 4.Ng3 Nh4 5.Qxf3 Nxf3+ 6.Kh1 Bxh3 7.Rfd1 Bg4 8.Rd3 Ng5 9.Re1 Bf3+ 10.Kg1 0-0-0
-+ (-2.09) Depth: 12 00:02:10 55097kN
-+ (-2.20) Depth: 13 00:02:30 65497kN
New game
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q - 0 1
Analysis by ProDeo 1.5:
1...0-0-0
-+ (-2.42) Depth: 1 00:00:00
1...Qc6 2.Qc2
-+ (-1.76) Depth: 1 00:00:00
-+ (-1.76) Depth: 1 00:00:00
1...Bc6 2.Ng3 Nd6
-+ (-1.85) Depth: 2 00:00:00
-+ (-1.89) Depth: 3 00:00:00
1...Qc6 2.Ng3 Nxg3 3.Bxg3 Bf5
-+ (-1.89) Depth: 3 00:00:00
-+ (-2.21) Depth: 4 00:00:00
1...Bc6 2.Ng3 Nxg3 3.Bxg3 0-0-0 4.Nd2
-+ (-2.28) Depth: 4 00:00:00
µ (-1.31) Depth: 5 00:00:00
1...0-0-0 2.Ng3 Be6 3.Nxf5 Bxf5 4.Nd2
-+ (-1.56) Depth: 5 00:00:00
1...e4 2.Nd2 e3 3.Ne4 Nh4 4.Nf4
-+ (-2.02) Depth: 5 00:00:00
-+ (-1.55) Depth: 6 00:00:00 81kN
1...0-0-0 2.Qb1 Be6 3.Nd2 Qb7 4.Ng3
-+ (-2.01) Depth: 6 00:00:00 97kN
1...Bc6 2.Ng3 Nxg3 3.Bxg3 Qb7 4.Nxe5 fxe5 5.Qh5+ Rg6 6.Qxh7
-+ (-2.05) Depth: 6 00:00:00 103kN
-+ (-1.43) Depth: 8 00:00:01 582kN
1...0-0-0 2.Ng3 Nxg3 3.Bxg3 Bc6 4.Ne1 d3 5.Qh5 Be4 6.Rd1 Qe6
-+ (-1.73) Depth: 8 00:00:01 635kN
-+ (-1.88) Depth: 11 00:00:09 10836kN
1...Rxg2+ 2.Kxg2 Bc6 3.Bg3 Bxf3+ 4.Kh2 0-0-0 5.Qe1 e4 6.Ng1 Nxg3 7.fxg3 Be2 8.Nxe2 Re8 9.Rf3 exf3
-+ (-1.88) Depth: 11 00:00:15 19638kN
-+ (-2.53) Depth: 14 00:04:00 354mN
(Taylor, Notts 23.09.2007)
Chris
New game
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q - 0 1
Analysis by CM9000 R1:
1...a4 2.Qc2 Rb8 3.Rab1 axb3 4.Rxb3
µ (-1.25) Depth: 3 00:00:00
µ (-1.09) Depth: 5 00:00:00
1...Qc6 2.Ng3 Nxg3 3.Bxg3 Bf5 4.Qe2 Rd8
µ (-1.20) Depth: 5 00:00:00
µ (-1.29) Depth: 6 00:00:00 41kN
1...a4 2.Qd3 axb3 3.axb3 Ra5 4.Ng3 Nxg3 5.Bxg3
-+ (-1.43) Depth: 6 00:00:00 60kN
µ (-0.97) Depth: 7 00:00:00 113kN
1...Qc6 2.Ng3 Nxg3 3.Bxg3 Bf5 4.Nh4 Be4 5.Re1
µ (-1.16) Depth: 7 00:00:00 144kN
1...Qb7 2.Ng3 Bc6 3.Re1 Bxf3 4.gxf3 Rd8 5.Qd3 Nh4
µ (-1.26) Depth: 7 00:00:00 213kN
µ (-1.19) Depth: 8 00:00:01 413kN
1...a4 2.Qc2 Qa7 3.Rac1 axb3 4.axb3 Qb7 5.Ng3 Nxg3 6.Bxg3 e4 7.Nd2
µ (-1.28) Depth: 8 00:00:01 725kN
µ (-1.04) Depth: 11 00:00:32 13577kN
1...Qb7 2.Ng3 Bc6 3.Ne1 Nxg3 4.Bxg3 0-0-0 5.Rc1 Be4 6.Qe2 a4 7.f3 Bf5
µ (-1.24) Depth: 11 00:00:40 17131kN
µ (-1.39) Depth: 12 00:00:57 24387kN
1...a4 2.Ng3 axb3 3.Qxb3 Qb4 4.Qc2 Qa4 5.Qe4 Qc6 6.Qb1 Nxg3 7.Bxg3 e4
-+ (-1.48) Depth: 12 00:01:59 49762kN
1...Rxg2+ 2.Kxg2 Qb7 3.Kg1 Qxf3 4.Ng3 Nh4 5.Qxf3 Nxf3+ 6.Kh1 Bxh3 7.Rfd1 Bg4 8.Rd3 Ng5 9.Re1 Bf3+ 10.Kg1 0-0-0
-+ (-2.09) Depth: 12 00:02:10 55097kN
-+ (-2.20) Depth: 13 00:02:30 65497kN
New game
r3k1r1/3bb2p/1q3p2/p1p1pn2/2Pp4/1P3N1P/P3NPPB/R2Q1RK1 b q - 0 1
Analysis by ProDeo 1.5:
1...0-0-0
-+ (-2.42) Depth: 1 00:00:00
1...Qc6 2.Qc2
-+ (-1.76) Depth: 1 00:00:00
-+ (-1.76) Depth: 1 00:00:00
1...Bc6 2.Ng3 Nd6
-+ (-1.85) Depth: 2 00:00:00
-+ (-1.89) Depth: 3 00:00:00
1...Qc6 2.Ng3 Nxg3 3.Bxg3 Bf5
-+ (-1.89) Depth: 3 00:00:00
-+ (-2.21) Depth: 4 00:00:00
1...Bc6 2.Ng3 Nxg3 3.Bxg3 0-0-0 4.Nd2
-+ (-2.28) Depth: 4 00:00:00
µ (-1.31) Depth: 5 00:00:00
1...0-0-0 2.Ng3 Be6 3.Nxf5 Bxf5 4.Nd2
-+ (-1.56) Depth: 5 00:00:00
1...e4 2.Nd2 e3 3.Ne4 Nh4 4.Nf4
-+ (-2.02) Depth: 5 00:00:00
-+ (-1.55) Depth: 6 00:00:00 81kN
1...0-0-0 2.Qb1 Be6 3.Nd2 Qb7 4.Ng3
-+ (-2.01) Depth: 6 00:00:00 97kN
1...Bc6 2.Ng3 Nxg3 3.Bxg3 Qb7 4.Nxe5 fxe5 5.Qh5+ Rg6 6.Qxh7
-+ (-2.05) Depth: 6 00:00:00 103kN
-+ (-1.43) Depth: 8 00:00:01 582kN
1...0-0-0 2.Ng3 Nxg3 3.Bxg3 Bc6 4.Ne1 d3 5.Qh5 Be4 6.Rd1 Qe6
-+ (-1.73) Depth: 8 00:00:01 635kN
-+ (-1.88) Depth: 11 00:00:09 10836kN
1...Rxg2+ 2.Kxg2 Bc6 3.Bg3 Bxf3+ 4.Kh2 0-0-0 5.Qe1 e4 6.Ng1 Nxg3 7.fxg3 Be2 8.Nxe2 Re8 9.Rf3 exf3
-+ (-1.88) Depth: 11 00:00:15 19638kN
-+ (-2.53) Depth: 14 00:04:00 354mN
(Taylor, Notts 23.09.2007)
Chris
-
bedouin
Re: A sac that computers cannot see?
Has anyone tried out the position on a normal zappa as well as on a quad/octa core zappa? Is there any other program that have a normal engine and an tactical engine that can solve the above like Rybka/Rybka Winfinder. The normal Rybka takes some time to see it probably because of alpha-beta pruning.