Author: William Bryant
Date: 21:23:29 06/30/99
Go up one level in this thread
On June 30, 1999 at 20:03:45, Will Singleton wrote:
>On June 30, 1999 at 17:43:02, Peter Kappler wrote:
>
>>
>>Grok finds Rxd5 in 20 seconds, with a score of +1.1 At 30 seconds the score
>>jumps to +3.7. (Running on a P2-350)
>>
>>--Peter
>
>
>That's an impressive result by Grok. Are you using the single-reply extension?
>If so, could you run it without it?
>
>Amateur takes 1 min 40 sec, 9 ply, +4.22. Too long! Good position for us
>amateurs, but the commercials get these types real quick.
>
>Will
Will, how long to find the move in the first place?
With only minimal extensions, I can find the move in 34 seconds, but take 2:35
seconds before my score jumps to +4. Enabling just the one-reply extension and
legal move generation (vs. pseudo-legal move generation) does not improve the
score in this position for my program.
William
wbryant@ix.netcom.com
Welcome to Screamer (Beta) 1.00 Build 28
Current Hash Table Size: 8192 K bytes
Debug Control On
PVS Search
NULL move Search
The Current Search Time: 180 seconds
New Board Position
4k3/1p4p1/2pbP2p/2Rn4/8/r2P2Pq/4QP1P/4R1K1 w - - 0 30
Move 1 W>>
PLY NODES TIME SCORE PV
____________________________________________
5 79048 0:01 +0.52 Rc4 Qf5 d4 Qd3 Qh5+ g6
6 247052 0:04 +0.44 Rc4 Qf5 Qe4 g6 Rb1 Ra7
7 1692114 0:31 +0.62 Rc4 g5 Qb2 Ra7 Qg7 Be7 Qh8+ Bf8
7 1849538 0:34 +0.81 Rxd5 cxd5 Qf3 Be7 Qf7+ Kd8 Qg8+ Kc7 Qxg7
8 2935560 0:53 +1.26 Rxd5 cxd5 Qb2 Kf8 Qxb7 Kg8 Qxd5 Ra6
9 8055309 2:35 +4.21 Rxd5 cxd5 Qf3 Bf4 Qxd5 Bd6 Qxd6
9 8880012 3:00 +4.21 Rxd5 cxd5 Qf3 Bf4 Qxd5 Bd6 Qxd6
Total Search Time: 3:00
Move: Rxd5
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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