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Subject: Re: Thank you for the info, Peter. Appreciated. (NT)

Author: Mogens Larsen

Date: 11:59:52 09/11/00

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On September 11, 2000 at 14:20:33, Chessfun wrote:

>>Here is one blunder of Gandalf4.32f against Crafty
>>
>>[D]r4rk1/3p1ppp/1pb1p3/p1b1P2B/2P2B1q/P1N5/1PQ2PPP/3R1RK1 w - - 0 1

>Maybe Christian could check, but others in limited time modes would
>alos play this move: As the time controls were 40/40' it can be guessed
>the move took maybe 2 minutes.

That is a reasonable assumption. Probably slightly less.

>Crafty 17-13N takes 3:30 on my machine to switch to Bg3.
>Fritz 6b takes 0:46 to switch to Bg3.

Gandalf analysis:
10440 <first :      2 94 0 254  g4 Qh3
10440 <first :      2 97 10 515  b4 !!
10440 <first :      2 257 10 606  b4 axb4 axb4 Qxf4 bxc5 Qxe5
10490 <first :      3 203 10 2531  b4 axb4 axb4 Bxb4 Na2 Qxf4 Nxb4 Qxe5 Nxc6
dxc6
10550 <first :      4 60 10 10447  b4 axb4 axb4 Bxb4 Na2 Rxa2 Qxa2 Qxf4
10550 <first :      4 64 10 12475  g4 !!
10550 <first :      4 112 20 16188  g4 f5 exf6 Rxf6 Bd6
10770 <first :      5 68 40 44395  g4 Qh3 Nd5 exd5 cxd5
11210 <first :      6 67 80 130466  g4 Qh3 Nd5 exd5 Rd3 Qh4 cxd5
12640 <first :      7 67 220 386080  g4 Qh3 Nd5 exd5 Rd3 Qh4 cxd5
15600 <first :      8 73 520 1054513  g4 Qh3 Nd5 exd5 Rd3 Qh4 cxd5 Bb7
23950 <first :      9 54 1360 2774173  g4 Qh3 Nd5 exd5 Rd3 Qh4 Bg3 Qg5 cxd5
83160 <first :     10 51 7280 13997968  g4 f5 exf6 g6 Bg3 Qxf6 g5 Qxg5 Be2 Qh6
193780 <first:     11 -4 18340 36003605  g4 Qh3 Nd5 Qf3 Rd3 Qe4 Rd2 exd5 Qxe4
dxe4
417160 <first:     11 -1 40680 83217254  Bg3 !!
473020 <first:     11  9 46270 93970165  Bg3 Qxh5 Kh1 a4 f3 h6 Ne4 Qg6 Rfe1 Rfc8

The score drops after about 3 minutes on my computer and Bg3 found after almost
7 minutes, so with standard timecontrol, fast computer and hashdata the move
would probably be different :o). Only a slight chance with 40/40' IMHO.

Yace 0.23 couldn't find the move within 4 minutes.

LG2000 v.2.9a doing 1.1M nps (!) found Bg3 in about 1 minute.

Mogens.



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