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Subject: Re: My game against Crafty 19.15 - (correction)

Author: Uri Blass

Date: 13:01:56 07/20/04

Go up one level in this thread


On July 20, 2004 at 15:41:17, Albert Silver wrote:

>On July 20, 2004 at 11:23:30, Robert Hyatt wrote:
>
>>There was a bug.  The "time_limit" variable is not correctly set before calling
>>Preevaluate().  However, since you are using very slow hardware, this time limit
>>would be wrong if it were correctly set.  I've removed the limit check so that
>>this is always done, which will cure this.  No idea why the limit check was even
>>in there in the first place, except to let it determine for itself whether the
>>capture is safe, given enough time and good hardware.
>
>I can't say this makes things clear to me at all. It might explain why the hxg5
>was played in his game, but what about in infinite analysis? Wouldn't it stop
>playing hxg5 at *some* point? Koch's analysis suggests it doesn't.
>
>                                          Albert

It is only tactics

Movei avoids hxg5 and Ne8 at tournament time control on A3000

Some analysis

depth=12 +0.96 h6g5 h4g5 f6e8 d1h5 g7g6 h5h6 e8g7 h3f4 g7h5 f4h5 g6h5 h1h5
Nodes: 8488293 NPS: 526569
Time: 00:00:16.12
depth=13 +0.07 h6g5 h4g5 f6d5 d1h5 f7f5 f1c4 e7b4 c4d5 e6d5 g5g6 f8e8 h5h7 g8f8
h7h8 f8e7 h8g7 e7d6
Nodes: 15552990 NPS: 524022
Time: 00:00:29.68
depth=13 +0.08 c7c6
Nodes: 40615446 NPS: 539883
Time: 00:01:15.23
depth=13 +0.26 c7c6 g5f6 e7f6 f1c4 f6h4 h3f4 b8d7 d1g4 h4g5 c3e4 g5f4 g4f4 d8a5
e1f1 e6e5
Nodes: 55753710 NPS: 541982
Time: 00:01:42.87
depth=13 +0.36 c7c5 g5f6 e7f6 d4c5 d8a5 f1c4 a5c5 d1g4 c5b4 g4e2 f6h4 h3f4 h4f6
e3e4 f6c3 b2c3
Nodes: 70930870 NPS: 544658
Time: 00:02:10.23
depth=13 +0.37 b8d7
Nodes: 91264339 NPS: 549685
Time: 00:02:46.03
depth=13 +0.49 b8d7 g5f6 e7f6 f1c4 f6h4 d1c2 g8h8 g2g3 h4e7 h3f4 d7f6 f4h5 f6d5
c2e4
Nodes: 110982726 NPS: 552895
Time: 00:03:20.73

After hxg5

depth=12 -0.07 h4g5 f6d5 d1h5 f7f5 f1c4 e7b4 c4d5 e6d5 g5g6 f8e8 h5h7 g8f8 h7h8
f8e7 h8g7 e7d6
Nodes: 12312514 NPS: 530711
Time: 00:00:23.20

depth=13 +0.00 h4g5 f6h7 d1h5 f7f5 h3f4 h7g5 h5h8 g8f7 h8h5 f7g8
Nodes: 25049399 NPS: 542077
Time: 00:00:46.21
depth=14 +0.57 h4g5 b8d7 h3f4 g7g6 g5f6 d7f6 d1f3 g8g7 f3h3 f8h8 h3h8 d8h8 h1h8
g7h8 f1c4 c8d7
Nodes: 181299578 NPS: 557398
Time: 00:05:25.26

Uri



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