Author: Sune Fischer
Date: 10:10:10 05/08/04
Go up one level in this thread
On May 08, 2004 at 12:39:03, Anthony Cozzie wrote: > >As I said before, the first two moves are "pass" moves. I don't think they are >actively bad, they just do nothing. GMs do not play pass moves. Current top >programs rarely play them. Deep Blue played 3 or 4 in a row ;) I think that depends on the position. Take a look at the Fritz/Junior games against Kramnik and Kasparov, I think they had plenty of pass moves from both programs, the Hedgehog just being one of them. >>Ruffian 1.0.5 UCI1 15 MB: >> 6 00:00 -0,01 Qa5c5 Ra1c1 Bc7d6 b3b4 Qc5b5 Nh4f3 >> 7 00:00 -0,05 Qa5c5 Ra1c1 e6e5 g3g4 Bh5g6 Nh4xg6 f7xg6 Kg1h1 >> 8 00:01 0,00 Qa5c5 Ra1c1 Qc5e7 Rc1a1 Qe7d6 Nh4f3 Qd6c5 Ra1c1 e6e5 >> 8 00:02 0,03 g7g5 Nh4f3 g5g4 b3b4 Qa5a4 Nf3d4 g4xh3 Bg2xh3 Nf6g4 >> 9 00:02 0,04 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 b3b4 Qa5a4 Nd2b3 Nd7e5 Nf3xe5 >>10 00:04 0,05 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 Nf3d4 c6c5 Nd4e2 Bc7e5 Bb2xe5 >>Nd7xe5 Ne2f4 >>11 00:08 -0,04 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 c2c4 d5xc4 Nd2xc4 Qa5f5 e3e4 >>Qf5c5 Kg1h1 >>11 00:16 -0,02 Qa5c5 Ra1c1 g7g5 Nh4f3 g5g4 d3d4 Qc5b5 c2c4 d5xc4 h3xg4 >>Nf6xg4 Rc1xc4 >> >>How deep is the fail-low for Zappa on g5? >>A "blunder" should be >1 pawn, IMO. > >Ruffian plays g5 for all of 8 seconds :) Deep Blue had 3 minutes to think. Here is a bit longer analysis, it switches back: Ruffian 1.0.5 UCI1 62 MB: 7 00:00 -0,05 Qa5c5 Ra1c1 e6e5 g3g4 Bh5g6 Nh4xg6 f7xg6 Kg1h1 8 00:01 0,00 Qa5c5 Ra1c1 Qc5e7 Rc1a1 Qe7d6 Nh4f3 Qd6c5 Ra1c1 e6e5 8 00:02 0,03 g7g5 Nh4f3 g5g4 b3b4 Qa5a4 Nf3d4 g4xh3 Bg2xh3 Nf6g4 9 00:03 0,04 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 b3b4 Qa5a4 Nd2b3 Nd7e5 Nf3xe5 10 00:04 0,05 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 Nf3d4 c6c5 Nd4e2 Bc7e5 Bb2xe5 Nd7xe5 Ne2f4 11 00:09 -0,04 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 c2c4 d5xc4 Nd2xc4 Qa5f5 e3e4 Qf5c5 Kg1h1 11 00:16 -0,02 Qa5c5 Ra1c1 g7g5 Nh4f3 g5g4 d3d4 Qc5b5 c2c4 d5xc4 h3xg4 Nf6xg4 Rc1xc4 12 00:38 -0,04 Qa5c5 g3g4 Bh5g6 Ra1c1 Bg6h7 Kg1h1 e6e5 Nh4f5 Bh7xf5 g4xf5 g7g6 f5xg6 f7xg6 Rf1g1 12 00:48 0,01 g7g5 Nh4f3 g5g4 h3xg4 Bh5xg4 d3d4 Qa5b5 a3a4 Qb5b6 e3e4 d5xe4 Nf3h2 Bg4f5 Nd2xe4 13 01:38 -0,02 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 Nf3d4 Qa5b6 f2f3 Ng4f6 g3g4 Bh5g6 Kg1h1 c6c5 Nd4e2 14 04:02 0,03 g7g5 Nh4f3 g5g4 h3xg4 Nf6xg4 e3e4 e6e5 e4xd5 c6xd5 c2c4 Ra8e8 Nf3h4 Nd7f6 c4xd5 Nf6xd5 Nh4f5 >Zappa's difference is almost 1/2 pawn. Is this from iteration 1 or is it something that slowly develops? Many programs have a penalty for pushing king pawns, it isn't always correct knowledge though. -S. >anthony
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