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Subject: Re: Behind Deep Blue: 3rd print with new Hsu afterword

Author: Anthony Cozzie

Date: 09:39:03 05/08/04

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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 ;)

>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.

Zappa's difference is almost 1/2 pawn.

anthony



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