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Subject: Re: Pawn ending === Capablanca-Ed.Lasker (simul) [test position] 40...Ke6!!

Author: Andrew Williams

Date: 07:40:07 05/23/02

Go up one level in this thread


On May 23, 2002 at 08:57:53, José Antônio Fabiano Mendes wrote:

>       Pawn ending === Capablanca-Ed.Lasker (simul) [test position] 40...Ke6!!
>    Source ===>  http://209.176.8.36/winter/winter.htm#2616. Sultan Khan
>                 [ please see item #2617 ]
>    [...]"the full game was examined by J. Mihalik on pages 251-252
>          of the August 1928 Deutsche Schachzeitung. He censured Black
>         for playing 40…Ke5 instead of 40…Ke6. The latter move he gave two
>        exclamation marks for being the way to draw."
>    [D]8/7p/p7/3k1pPP/3p4/3K4/P7/8 b


My program (on a PIII-933 with no TBs) switches to Ke6 after 1 second, but it
takes 59 seconds for the score to get as high as -0.64 (from Black's point of
view):

13>     0     0     92463   1...f4 2.g6 hxg6 3.hxg6 Ke6 4.Kxd4 Kf6
                            5.Ke4 Kxg6 6.Kxf4 Kf6
13=     0     0    116928   1...f4 2.g6 hxg6 3.hxg6 Ke6 4.Kxd4 Kf6
                            5.Ke4 Kxg6 6.Kxf4 Kf6
14>  -246     1    378200   1...Ke6 2.Kxd4 f4 3.Ke4 a5 4.Kxf4 Kf7
                            5.a3 Kg8 6.g6 Kh8 7.gxh7 Kxh7
14=  -189     2    454095   1...Ke6 2.Kxd4 a5 3.h6 Kf7 4.Ke5 Kg6
                            5.Kf4 a4 6.a3 Kh5
15>  -189     3    620922   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6 7.h7 Kg7
15=  -173     3    713808   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6 7.Ke4 g5 8.h7
16>  -214     4   1031125   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
16=  -198     4   1071377   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
17>  -198     6   1399561   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
17=  -154     8   1953350   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6 7.Kg4 g5 8.Kh5 a5
18>  -269    16   3395050   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
18=  -227    16   3428447   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
19>  -227    19   4023654   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
19=   -77    36   7662141   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6 7.Kg4 g5 8.h7
20>   -77    44   9105817   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
20=   -64    59  12475684   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
21>   -64    78  15572143   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
21=   -64    86  16986639   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
22>   -64   119  22795242   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
22=   -54   251  46452316   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
23>   -74   403  72337031   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
23=   -65   723 127622218   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6
24>   -65   910 157298927   1...Ke6 2.Kxd4 f4 3.Ke4 f3 4.Kxf3 Kf5
                            5.g6 hxg6 6.h6 Kf6

NODES per second 170700


Andrew



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