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Subject: Re: Yet another practical endgame...

Author: John Stanback

Date: 09:04:36 09/26/99

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On September 25, 1999 at 15:28:47, Andrew Dados wrote:

> Below position occured in a blitz 5 5 game my program played against
>PostModernist on ICC today:
>
>6k1/2n2p2/7p/4PPPP/2K1P3/8/8/8 w - - bm g5xh6 id MissSilicon-PostModernist
>
>I wonder how long does it take for your program to find gxh here... I am not
>sure if g6 does not win, however after g6 the above game ended in a draw, while
>gxh wins 'easily'. On a K6-450 it takes mine 11 seconds at depth 13 to find gxh
>(unfortunately only 8 seconds were allocated for search during game). I have a
>feeling that even 1800 player would play gxh in no time... that's why I ask your
>oppinion here.
>
>-Andrew-

Zarkov switches to gxh6 after 2.9 seconds in the 8th ply.


00:01.0    49408  7>    83  g6 Ne8 f6 Nc7 g7 Ne6 Kc3
00:01.1    52096  7     83  g6 Ne8 f6 Nc7 Kc5 Ne6+ Kd6 Nd4 gxf7+ Kxf7
00:01.3    68626  8>    83  g6 Ne8 f6 Nc7 Kc5 Ne6+ Kd6 Nd4 gxf7+ Kxf7
00:02.2   142336  8     53  g6 fxg6 hxg6 h5 Kd3 h4 Ke3 h3 Kf3 h2 Kg2
00:02.9   194944  8    126  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Kxh5 Kd7 <HT>
00:03.2   216074  9>   126  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Kxh5 Kd7 <HT>
00:04.6   336326  9    191  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
00:06.3   468480  9    227  gxh6 Kh7 Kc5 Kxh6 Kd6 Nb5+ Ke7 Nc3 Kxf7 Nxe4 f6
00:06.9   525780 10>   227  gxh6 Kh7 Kc5 Kxh6 Kd6 Nb5+ Ke7 Nc3 Kxf7 Nxe4 f6
00:09.3   739328 10    259  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
00:10.9   882576 11>   259  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
00:13.4  1085824 11    264  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
00:17.7  1428141 12>   264  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
00:23.3  1794176 12    236  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
01:06.7  4693929 13>   236  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 Kd7 Ng7 Ke7 Nxh5 Kxf7
01:19.6  5698622 13    315  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Kxh5 Kd7 Nxf6+ exf6
01:40.4  7405236 13    405  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Nxf6 exf6 Kg5 Kd7
02:07.4  9607951 13    605  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Nxf6 exf6 Kg5 Kd7
02:44.3 12241408 13    704  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Kh7 Kd7 Nc7 Kxc7 Kh8
03:24.6 15418493 14>   704  gxh6 Kh7 Kc5 Ne8 Kc6 Kxh6 f6 Kh7 Kd7 Nc7 Kxc7 Kh8

John



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