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Subject: Re: Hard position for programs !!

Author: Michel Langeveld

Date: 21:19:41 07/02/00

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On July 02, 2000 at 14:40:48, Pete Galati wrote:

>On July 02, 2000 at 12:48:04, Côme wrote:
>
>>
>>Hello in this position of a game Leotard-Rufenacht does your chess program
>>find the winning move Bc4! .
>>
>>[D]8/p3k1p1/1p4p1/5p2/3Pp2P/1BK1P3/P4PP1/5b2 w - -
>>
>>Best Regards
>>Alexandre Côme
>
>I'm looking at Crafty analyzing that on my slow computer and I think it's going
>to stay more concerned with it's pawn, like:
>
>12->   1:12   0.09   1. g3 Be2 2. a3 Bf3 3. a4 Be2 4. Kd2
>                     Bf3 5. Bc4 Kf6 6. d5 g5 7. hxg5+ Kxg5
>
>I don't understand why Bc4 is good.  Why Bc4?
>
>Pete

Crafty finds it at ply 16:
               16->  12:08   0.50   1. Bc4 Bxg2 2. Kb4 Kd6 3. Kb5 Kc7 4.
                                    Ka6 Kb8 5. d5 Bh3 6. d6 f4 7. exf4
                                    Bc8+ 8. Kb5 Bd7+ 9. Kb4 a5+ 10. Kc3
                                    Kb7
                                    Kb7
               17    14:05   0.59   1. Bc4 Bxg2 2. Kb4 Kd6 3. Kb5 Kc7 4.
                                    Ka6 Kb8 5. d5 Kc7 6. Kxa7 Bh3 7. Ka6
                                    Bg2 8. Kb5 Bf3 9. a4




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