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Subject: Re: Test position

Author: Dieter Buerssner

Date: 15:52:39 05/06/05

Go up one level in this thread


On May 06, 2005 at 15:28:24, Mihaly Szalai wrote:

>[D]6k1/1p2q2p/5Qp1/3p2K1/3P1PP1/8/7P/8 b - -
>
>1... h6+! 2. Kxg6 Qh7+ 3. Kh5 Qf7+ 4. Qxf7+ Kxf7 5. Kxh6 Kg8!-+
>
>Strangely enough Fritz 8 doesn't find the solution in 10 minutes,
>while The King solves it in 2 seconds...

Yace finds h6 here in under one second and shows in a bit more than one second
pretty convincing score of over +3. No TBs/bitbases; Centrino 1.7 GHz, 50 MB
hash.

   457129   0.390  -0.16  6t  1...Qf7 2.Qd6 b5 3.h4 Kg7 4.Qe5+ Kg8 {0}
   784751   0.631  -0.15  6t+ 1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.h4 b5 6.f5 b4 7.f6 b3 8.g5 hxg5 9.hxg5 b2
                              10.g6+ Kxf6 11.g7 b1=Q 12.g8=Q {0}
   792275   0.641   0.22  6++ 1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.g5 hxg5 6.h4 gxh4 7.Kxh4 Kg8 8.Kg3H b5H
                              9.Kf3H b4H 10.Ke3H b3H 11.Kd3H {0}
   839803   0.681   0.29  6t  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6H Ke7H 6.f5H b5H 7.h4H b4H 8.g5H Ke8H
                              9.f6H b3H 10.Kg6H b2H 11.Kg7H b1=RH 12.f7+H
                              Ke7H {260}
   840307   0.681   0.29  6.  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Ke7 6.f5 b5 7.h4 b4 8.g5 Ke8 9.f6 b3
                              10.Kg6 b2 11.Kg7 b1=R 12.f7+ Ke7 {260}
   923788   0.741   0.73  7++ 1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.g5 hxg5 6.h4 gxh4 7.f5 Kg8 8.Kg6 b5 9.Kf6 h3
                              10.Ke7 h2 11.f6 h1=Q 12.f7+ Kg7 13.f8=Q+ Kg6
                              {80}
   939324   0.751   1.75  7++ 1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.g5 hxg5 6.f5 b5 7.h4 b4 8.f6 Kxf6 9.Kh6 Kf7
                              10.Kxg5 b3 11.Kg4 Kg8 12.Kf5 b2H 13.h5H b1=Q+H
                              14.Ke5H {921}
  1261541   0.981   3.42  7t  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4H b4H 9.h5H
                              b3H 10.h6H Kg8H 11.g5H b2H 12.Ke6H b1=QH
                              13.Kxd5H {681}
  1699239   1.322   3.42  7.  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.g5 b2 12.Ke6 b1=Q 13.Kxd5 {681}
  1830793   1.412   3.82  8++ 1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.h4 b4 8.f5 b3 9.Kf6 b2
                              10.Ke6 b1=Q 11.Kxd5
  2415625   1.842   3.91  8t  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.g5 b2 12.g6H b1=QH 13.f5H {761}
  3757934   2.854   3.91  8.  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.g5 b2 12.g6 b1=Q 13.f5 {761}
  4812788   3.625   3.96  9t  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.Ke6 b2 12.Kxd5 b1=QH {681}
  8301374   6.239   3.96  9.  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.Ke6 b2 12.Kxd5 b1=Q {681}
 11074870   8.292   4.19 10t  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.Ke6 b2 12.Kxd5 Kh7 13.g5 b1=Q
                              14.Ke5 Qg6 {681}
 20196231  15.131   4.19 10.  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.Ke6 b2 12.Kxd5 Kh7 13.g5 b1=Q
                              14.Ke5 Qg6 {681}
 21406803  16.033   4.59 11++ 1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.g5 b3
                              10.g6 Kg8 11.Ke6 b2 12.f5 b1=Q 13.h5 Qh1 14.Ke5
 25489035  19.107   5.15 11t  1...h6+ 2.Kxg6 Qh7+ 3.Kh5 Qf7+ 4.Qxf7+ Kxf7
                              5.Kxh6 Kg8 6.Kg5 b5 7.Kf6 Kf8 8.h4 b4 9.h5 b3
                              10.h6 Kg8 11.Ke6 b2 12.Kxd5 b1=Q 13.Ke5 Qb8+
                              14.Kf5 Qb5+ 15.d5 Qd7+ 16.Kg5 {681}

Regards,
Dieter



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