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Subject: Re: A good test position

Author: Tord Romstad

Date: 08:55:52 02/09/04

Go up one level in this thread


On February 09, 2004 at 10:00:00, Albert Silver wrote:

>Jose Garcia Ruvalcaba posted some correspondence games of his at CTF, including
>a loss in 1999 to Anatoly Sidenko. Sidenko came up with a superb move, that
>makes a good test position for today's super bots.
>
>                                          Albert
>
>[Event "CM-1999-0-00086"]
>[Site "IECG"]
>[Date "1999.08.30"]
>[Round "1"]
>[White "Sidenko, Anatoly"]
>[Black "Garcia Ruvalcaba, Jose"]
>[Result "1-0"]
>
>1. d4 Nf6 2. Bg5 g6 3. Nc3 d5 4. f3 Bg7 5. Qd2 Nc6 6. e4 dxe4 7. d5 e3 8.
>Bxe3 Nb4 9. O-O-O c6 10. dxc6 Qxd2+ 11. Rxd2 Nxc6 12. Bb5 O-O 13. Nge2 e5
>14. Rhd1 Be6 15. f4 Bh6 16. Rd6 Rfc8 17. Kb1 Ng4 18. Bc1 Bf8 19. Bxc6 bxc6
>20. fxe5 Nxe5 21. R6d4 Bg7 22. Nf4 Bg4 23. Re1 Rd8 24. Rde4 f6 25. h3 Bf5
>26. Rb4 Bf8 27. Ra4 a5 28. g4 Bd7 29. Ne4 Kf7
>
>[D]r2r1b2/3b1k1p/2p2pp1/p3n3/R3NNP1/7P/PPP5/1KB1R3 w - - 0 30
>
>30. Nxf6!! Kxf6 31. g5+ Kf5 32. Nd5!

Gothmog (Pentium IV 2.4 GHz) finds the right move instantly, but
needs several minutes to find the subsequent moves, and does not
display a winning score even after 15 plies and 47 minutes.  Like
Comet, it probably doesn't have a clue about what is going on:

 1        0.59     0.00        132 Rd4
 2        0.34     0.00        684 Bd2 Bh6
 3        1.38     0.02       2857 Nxf6 Kxf6 g5+ Kxg5 Rxe5+
 4        1.38     0.03       4442 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kh4
 5        1.31     0.07      10205 Nxf6 Kxf6 g5+ Kg7 Rxe5 Bb4
 6    <=  1.30     0.20      27027 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rae4 Kg7
 6    <=  1.28     0.20      27909 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rae4 Kg7
 6    <=  1.25     0.21      29212 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rae4 Kg7
 6    <=  1.17     0.22      31301 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rae4 Kg7
 6    <=  1.02     0.23      34443 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rae4 Kg7
 6    >=  0.83     0.24      36529 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6    >=  0.84     0.24      36610 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6    >=  0.91     0.25      37113 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6    <=  1.00     0.26      37619 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6    <=  0.98     0.26      38470 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6    <=  0.95     0.27      39165 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6    <=  0.91     0.27      40461 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 6        0.91     0.28      40461 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 7    >=  0.91     0.42      63311 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 7    <=  0.91     0.75     124805 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 7        0.91     0.76     124805 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5
 8    <=  0.89     1.66     302252 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 8    <=  0.88     1.69     309059 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 8    <=  0.84     1.76     326877 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 8    <=  0.77     2.00     383376 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 8    >=  0.62     2.07     394206 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 8    <=  0.62     2.40     466439 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 8        0.62     2.41     466439 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5
 9    >=  0.62     2.56     497139 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5 h4
 9    >=  0.64     2.58     499169 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5 h4
 9    >=  0.70     2.62     508057 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5 h4
 9    <=  0.83     4.59     893325 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5 h4
 9    <=  0.81     4.66     913134 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bf5 h4
 9    <=  0.78     4.86     959627 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bb4 Ra7
 9    >=  0.72     4.87     963887 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bb4 Ra7
 9    <=  0.72     5.31    1023900 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bb4 Ra7
 9        0.72     5.34    1023900 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bb4 Ra7
10    <=  0.70    11.67    2256868 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bb4 Ra7
10    <=  0.69    11.96    2341771 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bb4 Ra7
10    <=  0.66    13.44    2677578 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 h4 Bf5
10    >=  0.59    13.75    2746025 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 Nh5+ Kf7 Bg5
10    >=  0.61    13.78    2750539 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 Nh5+ Kf7 Bg5
10    <=  0.64    14.06    2832796 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 Nh5+ Ke6
10    <=  0.62    14.33    2907762 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 Nh5+ Ke6
10    <=  0.61    14.85    3040342 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 Nh5+ Ke6
10        0.61    14.86    3040342 Nxf6 Kxf6 g5+ Kxg5 Rxe5+ Kf6 Rexa5 Rxa5
                                   Rxa5 Bd6 Nh5+ Ke6
11    <=  0.59    36.26    7346627 Nxf6 Kxf6 g5+ Kf5 Re2 Bb4 h4 Nf3
11    <=  0.58    38.10    7815861 Nxf6 Kxf6 g5+ Kf5 Re2 Bb4 h4 Nf3
11    <=  0.55    40.86    8505358 Nxf6 Kxf6 g5+ Kf5 Re2 Bb4 h4 Nf3
11    <=  0.47    45.83    9715778 Nxf6 Kxf6 g5+ Kf5 Re2 Bb4 h4 c5
11    <=  0.31     1:07   14551692 Nxf6 Kxf6 g5+ Kf5 Re2 Bb4 h4 c5
11    >=  0.06     1:08   14876496 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7 Bxe5 Bxe5 Rxe5 Bxh3
11    >=  0.08     1:08   14885972 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7 Bxe5 Bxe5 Rxe5 Bxh3
11    >=  0.14     1:08   14912233 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7 Bxe5 Bxe5 Rxe5 Bxh3
11    <=  0.27     1:15   16459740 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7
11    <=  0.25     1:17   17001029 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7
11    <=  0.22     1:21   17846209 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7
11    <=  0.14     1:31   20128561 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7
11        0.14     1:31   20128561 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Ke6 Bf4
                                   Kf7
12    <=  0.12     2:35   33007063 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Rf8
12    <=  0.11     2:57   37798551 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Rf8
12    <=  0.08     3:18   42600453 Nxf6 Kxf6 g5+ Kf5 Rae4 Bd6 Ng2 Rf8
12    >=  0.02     4:19   54849238 Re2 c5 Ra3 Bb5 Re1 Be7 g5 fxg5 Nxg5+
12    <=  0.02     4:36   58415906 Re2 Be7 Bd2 Bc8 Rf2 c5 Ng5+ fxg5 Nd5+ Bf6
                                   Rxf6+
12        0.02     4:36   58415906 Re2 Be7 Bd2 Bc8 Rf2 c5 Ng5+ fxg5 Nd5+ Bf6
                                   Rxf6+
13    >=  0.02     5:18   67419146 Nxf6 Kxf6 g5+ Kf5 Nd5 Bd6 Rf4+ Ke6 Nb6
                                   Rf8 Nxa8 Rxa8 Rf6+ Ke7
13    >=  0.03     5:19   67584085 Nxf6 Kxf6 g5+ Kf5 Nd5 Bd6 Rf4+ Ke6 Nb6
                                   Rf8 Nxa8 Rxa8 Rf6+ Ke7
13    >=  0.09     5:21   68008462 Nxf6 Kxf6 g5+ Kf5 Nd5 Bd6 Rf4+ Ke6 Nb6
                                   Rf8 Nxa8 Rxa8 Rf6+ Ke7 Bf4
13    <=  0.22     6:58   88715985 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5
13    <=  0.20     7:40   97838920 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5
13    <=  0.17     8:45  111679716 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4
13    >=  0.11     8:47  112149152 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8
13    >=  0.12     8:47  112314725 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8
13    <=  0.16     9:31  121529505 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4
13    <=  0.14    10:21  130897894 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4
13    >=  0.14    10:24  131345045 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8
13        0.14    10:24  131345045 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8
14    >=  0.14    10:53  137492125 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    >=  0.16    10:56  138304518 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    >=  0.22    11:09  141169715 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    <=  0.34    15:06  189314892 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    <=  0.33    17:00  213917512 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    <=  0.30    19:18  242361408 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    >=  0.23    19:25  244185670 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    >=  0.25    19:30  245242374 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    <=  0.28    21:30  269761242 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rbe4 Bc8 Rh4
14    >=  0.28    21:39  271655697 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rf4+ Ke6 Rf6+ Kd5 b4
14        0.28    21:39  271655697 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rf4+ Ke6 Rf6+ Kd5 b4
15    >=  0.28    22:58  287831134 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rf4+ Ke6
15    >=  0.30    23:20  292144790 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rf4+ Ke6
15    >=  0.36    23:43  298092072 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Ra5 Rf4+ Ke6
15    <=  0.48    31:24  397454327 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Be8
15    <=  0.47    35:38  452258517 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Be8
15    <=  0.44    40:31  516077385 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Be8
15    >=  0.38    40:58  522596764 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Be8 Rbe4 Ra5 b4
15    <=  0.38    47:42  608327243 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Be8
15        0.38    47:42  608327243 Nxf6 Kxf6 g5+ Kf5 Nd5 Bb4 Nxb4 axb4 Rxb4
                                   Be8

Tord



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