Author: Joachim Rang
Date: 14:22:37 12/03/03
Go up one level in this thread
On December 03, 2003 at 17:04:19, Dieter Buerssner wrote:
>On December 03, 2003 at 15:48:36, Joachim Rang wrote:
>
>>Hi,
>>
>>it was probably already posted several times but maybe not:
>>
>>[D]8/5R2/2p5/8/7P/1K2b3/P3kp2/8 w - - 0 1
>>
>>Best move is Kc2!
>
>Isn't Kc3 another winning move?
>
>Yace PB on P4, 2.53 Ghz:
>
> 12667112 14.669 0.00 16. 1.h5 f1=Q 2.Rxf1 Kxf1 3.Kc4 Bh6 4.Kc5 Be3+
> 5.Kxc6 {EGTB} 5...Kf2 6.a3 Bd2 7.a4 Kf3 8.a5
> Bxa5! 9.h6 Bd8 10.h7 Bf6! 11.h8=Q Bxh8! {No
> mating material} {-350}
> 23475162 36.226 0.00 17t 1.h5 f1=Q 2.Rxf1 Kxf1 3.Kc4 Bh6 4.Kc5 Be3+
> 5.Kxc6 {EGTB} 5...Kf2 6.a3 Bd2 7.a4 Kf3 8.a5
> Bxa5! 9.h6 Bd8 10.h7 Bf6! 11.h8=Q Bxh8! {No
> mating material} {-350}
> 77546265 2:24.9 0.01 17t+ 1.Kc3 f1=Q 2.Rxf1 Kxf1 3.Kd3 Bc5 4.h5 Ke1 5.a4
> Kd1 6.a5 Ba7 7.a6 Bg1 8.a7 Kc1 9.a8=Q c5
> 86617202 2:41.3 0.40 17++ 1.Kc3 f1=Q 2.Rxf1 Kxf1 3.Kd3 Bc5 4.a4 Ke1 5.h5
> Kd1 6.a5H Bd6H 7.a6H c5H 8.a7H Bh2H 9.a8=QH
> c4+H 10.Kxc4H Ke2H {HT}
> 92288390 2:52.9 1.40 17++ 1.Kc3 f1=Q 2.Rxf1 Kxf1 3.Kd3 Bc5 4.a4 Ke1 5.h5
> Kd1 6.a5 Bd6 7.a6 c5 8.a7 Bh2 9.a8=Q c4+
> 10.Kxc4 Ke2
> 121724197 3:45.7 4.85 17t 1.Kc3 Bh6 2.a4 Be3 3.h5H Kd1H 4.Kd3H Ba7H 5.h6H
> Kc1H 6.h7H Kb2H {HT}
> 125970323 3:55.6 4.85 17. 1.Kc3 Bh6 2.a4 Be3 3.h5 Kd1 4.Kd3 Ba7 5.h6 Kc1
> 6.h7 Kb2
> 163197595 5:06.5 5.11 18t 1.Kc3 Bd2+ 2.Kc2 Bb4 3.h5 f1=Q 4.Rxf1 Kxf1 5.h6
> Bf8 6.h7H Bg7H 7.a4H Ke2H 8.a5H Ba1H 9.a6H Bd4H
> 10.Kb3H Ke3H 11.Kc4H Ke4H 12.a7H Bxa7H 13.h8=QH
> Ke3H {571}
> 184564858 5:58.6 5.11 18. 1.Kc3 Bd2+ 2.Kc2 Bb4 3.h5 f1=Q 4.Rxf1 Kxf1 5.h6
> Bf8 6.h7 Bg7 7.a4 Ke2 8.a5 Ba1 9.a6 Bd4 10.Kb3
> Ke3 11.Kc4 Ke4 12.a7 Bxa7 13.h8=Q Ke3 {571}
> 226218588 7:38.0 5.15 19t 1.Kc3 Bd2+ 2.Kc2 Bb4 3.h5 f1=Q 4.Rxf1 Kxf1 5.h6
> Bf8 6.h7 Bg7 7.a4 Ke2 8.a5 Ba1 9.a6 Bd4 10.Kb3
> Ke3 11.Kc4 Kf2H 12.h8=QH c5H {HT}
> 280726410 9:56.5 5.15 19. 1.Kc3 Bd2+ 2.Kc2 Bb4 3.h5 f1=Q 4.Rxf1 Kxf1 5.h6
> Bf8 6.h7 Bg7 7.a4 Ke2 8.a5 Ba1 9.a6 Bd4 10.Kb3
> Ke3 11.Kc4 Kf2 12.h8=Q c5
> 442072977 16:38.6 5.55 20++ 1.Kc3 Bd2+ 2.Kc2 Bb4 3.h5 f1=Q 4.Rxf1 Kxf1 5.h6
> Bf8 6.h7 Bg7 7.a4 c5 8.Kd3 Kg2 9.Kc4 Bh6
> 10.h8=Q Bg7 11.Qxg7+ Kf2
> 549204106 21:04.0 6.55 20++ 1.Kc3 Bd2+ 2.Kc2 Bb4 3.h5 f1=Q 4.Rxf1 Kxf1 5.h6
> Bf8 6.h7 Bg7 7.Kd3 Kg2 8.a4 c5 9.a5 Bf6 10.Kc4
> Bh4 11.h8=Q Kh2
> 564120446 21:39.3 6.55 20t 1.Kc3 Bd2+ 2.Kc2 Be3H 3.a4H {HT}
> 684173677 27:55.8 6.55 20. 1.Kc3 Bd2+ 2.Kc2 Be3 3.a4
>
>With a newer version of Yace, I got:
>
> 12209237 26.905 0.00 16. 1.h5 f1=Q 2.Rxf1 Kxf1 3.Kc4 Kg2 4.h6 Bxh6
> {EGTB} 5.Kd4 Bg7+ 6.Kc4 Bf8 7.a4! Bg7 8.a5 Bh6
> 9.Kd4 Bg7+ 10.Ke4 Bf8! 11.Kd4! Bg7+ 12.Ke4 Bf8!
> 13.Kd4! Bg7+ {repetition} {-350}
> 15474854 36.965 0.00 17t 1.h5 f1=Q 2.Rxf1 Kxf1 3.Kc4 Kg2 4.h6 Bxh6
> {EGTB} 5.Kd4 c5+ 6.Ke4 c4 7.a3 c3 8.Kd3! c2
> 9.Kxc2! Bg7 10.a4 Bf8 11.a5 Bg7 12.a6 Bd4!
> 13.a7 Bxa7! {No mating material} {-350}
> 46600055 2:06.3 0.01 17t+ 1.Kc3 f1=Q 2.Rxf1 Kxf1 3.Kd3 Bh6 4.a4 Kg2 5.h5
> Kh2 6.a5H Kg1H 7.Kc2H c5H 8.a6H c4H 9.Kc3H Bf8H
> 10.a7H Kf2H 11.a8=QH Ke3H {HT}
> 55028726 2:22.6 0.40 17++ 1.Kc3 f1=Q 2.Rxf1 Kxf1 3.Kd3 Bh6 4.a4 Bf4 5.h5
> Be5 6.h6 Bb8 7.h7 c5 8.h8=Q c4+ 9.Kxc4 Bf4
> 57818297 2:28.7 0.41 17t 1.Kc3 f1=Q 2.Rxf1 Kxf1 3.Kd3 Kf2H 4.a4H c5H
> 5.Kc3H Bf4H 6.Kc2H Ke3H 7.Kc1H Bd6H 8.h5H Kf2H
> 9.h6H Ke3H 10.Kc2H Kd4H 11.h7H Be5H 12.a5H Kd5H
> 13.a6H Kc6H {HT} {-270}
> 60162390 2:33.4 0.42 17t+ 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a4 Ke2 4.a5 Kf3 5.Kd3
> c5 6.Kc4H Bf4H 7.h5H Ke4H 8.a6H Bb8H 9.h6H Ke3H
> 10.h7H Be5H 11.Kxc5H {-190}
> 60386562 2:34.0 0.42 17t 1.Kc2 f1=Q 2.Rxf1 Kxf1H 3.a3H Ke2H 4.Kb3H Bd2H
> 5.h5H Be1H 6.h6H Bh4H 7.Kc4H Bf6H 8.a4H Kf3H
> 9.a5H Kg2H {-270}
> 62056825 2:38.3 0.42 17. 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a3 Ke2 4.Kb3 Bd2 5.h5
> Be1 6.h6 Bh4 7.Kc4 Bf6 8.a4 Kf3 9.a5 Kg2 {-270}
> 66770339 2:53.4 0.56 18t 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a4 Ke2 4.a5 Kf3 5.Kd3
> c5 6.Kc4 Bf4 7.h5H Ke4H 8.h6H Kf5H {-270}
> 82515078 3:32.2 0.56 18. 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a4 Ke2 4.a5 Kf3 5.Kd3
> c5 6.Kc4 Bf4 7.h5 Ke4 8.h6 Kf5 {-270}
> 86427149 3:44.1 0.96 19++ 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a4 Ke2 4.a5 Kf3 5.Kd3
> c5 6.Kc4 Bf4 7.h5 Kg4 8.a6 Kf5 9.a7 Bb8
> 10.axb8=Q Ke4
> 88120788 3:50.3 1.96 19++ 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a4 Ke2 4.a5 Kf3 5.Kd3
> c5 6.Kc4 Bf4 7.h5 Kg4 8.a6 Kf5 9.a7 Bb8
> 10.axb8=Q Ke4
> 117530903 5:09.6 5.62 19t 1.Kc2 f1=Q 2.Rxf1 Kxf1 3.a4 Ke2 4.a5 Kf3 5.Kd3
> Kf4 6.h5 c5 7.Kc4 Kg5 8.a6 Bd2 9.a7 Bb4 10.a8=Q
> Kxh5 11.Qg2 {571}
>
>Both tests did not use the CPU exclusively. Perhaps the difference between
>coming up with Kc2 or Kc3 is just a bit of "hash-luck".
>
>Regards,
>Dieter
yes you are right Kc3 is another solution. 2 minutes on a p4 2.5 Ghz is not so
bad.
regards Joachim
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