Author: Dann Corbit
Date: 13:07:44 12/18/00
Go up one level in this thread
On December 17, 2000 at 14:08:33, Peter Berger wrote:
>[D]r5k1/1pqn3p/r4b2/p2p4/8/RP6/RP1BBPP1/3Q1K2 b - - 0 1
>
>In this position Black seems to be in serious trouble that calls for drastic
>measures . The difficulty is that the key move ..Qh2 ( with idea of ..Rxe3 after
>..Re8 Be3 and the chess on h1 ) doesn't reach perpetual . Still it offers by far
>the best fighting chances as White's rooks are (temporary?) out of game and
>black gets ample compensation for the exchange . The usual question : how long
>does your(?) program need to find ..Qh2 and which program can find this at all ?
>
>Btw , Fritz6a can . That it even went on to win this game is another surprising
>part of the story .. :-)
Not so tough for Phalanx, apparently. Finds it in just a few seconds:
[ white, 1 ]
post
post on
[ white, 1 ]
level 999
fixed time 999 seconds
[ white, 1 ]
r5k1/1pqn3p/r4b2/p2p4/8/RP6/RP1BBPP1/3Q1K2 b - -
r5k1/1pqn3p/r4b2/p2p4/8/RP6/RP1BBPP1/3Q1K2 b - -
5 -171 55 46915 Qc7-h2 Be2xa6 Qh2-h1 Kf1-e2 Ra8-e8 Bd2-e3
Re8xe3 Ke2-d2 Qh1xg2 Kd2xe3 Pb7xa6 Ra3xa5
5 -166 59 51412 Ra6-a7 !
5 -125 79 75878 Ra6-a7 Be2-b5 Bf6-g7 Bd2-c3
5 -120 92 91921 Ra6-e6 !
5 -93 105 110233 Ra6-e6 Ra3xa5 Ra8xa5 Ra2xa5 Qc7-h2 Ra5-a8
Kg8-g7 Be2-f3
5 -> 0:01.18 129392 2 turns
6 -109 197 249186 Ra6-e6 Be2-g4 Re6-e4 Ra3xa5 Ra8xa5 Bd2xa5
Qc7-c6 Bg4-f5
6 -> 0:02.69 375179 0 turns
7 -102 420 634425 Ra6-e6 Be2-g4 Re6-a6 Bd2xa5 Ra6xa5 Bg4xd7
Kg8-h8 Qd1-g4
7 -97 488 740640 Qc7-h2 !
7 -82 530 816449 Qc7-h2 Be2xa6 Qh2-h1 Kf1-e2 Qh1xg2 Pb3-b4
Ra8-e8 Ra3-e3 Re8xe3 Bd2xe3 Pb7xa6 Ra2xa5
7 -> 0:07.41 1248682 1 turn
8 -82 957 1579767 Qc7-h2 Be2xa6 Qh2-h1 Kf1-e2 Qh1xg2 Pb3-b4
Ra8-e8 Ra3-e3 Re8xe3 Bd2xe3 Pb7xa6 Ra2xa5
8 -> 0:15.26 2542795 0 turns
9 -36 2532 4053080 Qc7-h2 Be2xa6 Qh2-h1 Kf1-e2 Ra8-e8 Bd2-e3
Re8xe3 Ke2-d2 Qh1xg2 Qd1-f1 Re3-g3 Qf1xg2
Rg3xg2 Ba6xb7 Rg2xf2 Kd2-e3
9 -> 0:38.82 6570899 0 turns
10 -37 7495 12277740 Qc7-h2 Be2xa6 Qh2-h1 Kf1-e2 Ra8-e8 Bd2-e3
Re8xe3 Ke2-d2 Qh1xg2 Qd1-f1 Re3-g3 Ba6-e2
Bf6-g5
10 -> 2:26.10 23773624 0 turns
11 -96 24401 38453202 Qc7-h2 Be2xa6 Qh2-h1 Kf1-e2 Qh1xg2 Pb3-b4
11 -> 12:15.33 121443663 0 turns
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