Author: Dann Corbit
Date: 13:46:10 05/09/00
Go up one level in this thread
Despite not finding the key move, I must (again) express adoration for Dusan
Dobes evaluation function. His move generator is not the fastest on the planet.
His time to ply is beaten by many engines. Yet his evaluation function
consistently finds the best move one or more plies before his rivals. In this
case, consider how fast his program found Bg5:
r5kb/p1qbpp2/3p1npB/1p6/2r1P1P1/1NN2P2/PPPQ4/2KR3R w - -
-> soft time limit 1714.28 s
-> hard time limit 31999.9 s
4 49 58 10695 Kc1-b1 !
4 49 62 11571 Kc1-b1 Pa7-a5
4 54 86 17285 Bh6-g5 !
4 54 87 17503 Bh6-g5 Ra8-c8
4 -> 0:01.30 28953 2 turns
5 60 179 45854 Bh6-g5 Ra8-c8 Qd2-h2 Bh8-g7 Bg5xf6 Bg7xf6
Qh2-h7 Kg8-f8
5 61 262 81757 Qd2-e2 Pb5-b4 Nb3-d2 Rc4-c6
5 66 371 124772 Qd2-d3 !
5 67 381 130950 Qd2-d3 Ra8-c8 Nb3-d2 Rc4-b4 Nd2-b3
5 -> 0:04.57 157327 2 turns
6 33 616 216035 Qd2-d3 Pb5-b4 Nb3-d2 Rc4-c5 Nc3-e2 Ra8-c8
6 38 711 253522 Bh6-g5 !
6 93 959 353651 Bh6-g5 !!
6 117 1135 431429 Bh6-g5
6 -> 0:12.72 482818 1 turn
7 177 2261 881362 Bh6-g5 !!
7 177 2272 885471 Bh6-g5 Bh8-g7 Bg5xf6 Bg7xf6
7 -> 0:25.91 1029752 0 turns
8 226 6659 2652599 Bh6-g5 Bh8-g7 Bg5xf6 Pe7xf6 Nc3-d5 Qc7-d8
Nb3-a5 Rc4-c8 Na5-b7
8 -> 1:14.62 2966611 0 turns
9 193 15336 6169732 Bh6-g5 Bh8-g7 Bg5xf6 Pe7xf6 Qd2xd6 Bd7-e8
Qd6xc7 Rc4xc7 Nc3-d5 Rc7-c4 Nd5-e7 Kg8-f8
Rh1-h7 Kf8xe7 Rh7xg7
9 -> 4:00.93 10039242 0 turns
10 191 48430 19578587 Bh6-g5 Bh8-g7 Bg5xf6 Pe7xf6 Nc3-d5 Qc7-d8
Nd5-e3 Rc4-c6
10 -> 17:01.80 38385518 0 turns
11 188 195090 66378935 Bh6-g5 Bh8-g7 Bg5xf6 Pe7xf6 Qd2xd6 Bd7-e8
Qd6xc7 Rc4xc7 Nc3-d5 Rc7-c4 Nd5-e7 Kg8-f8
Rh1-h7 Bg7-h6 Rh7xh6 Kf8xe7
Between 4 and 12 seconds Bg5 was found {and -- more importantly -- retained}!
Amazing!!
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