Author: Dieter Buerssner
Date: 12:06:12 05/27/05
Go up one level in this thread
On May 27, 2005 at 13:01:26, Yar wrote:
>Hello guys !
>
>Hydra claimed a forced mate in 16. It was rapid game on playchess.com 10 10.
>Shredder 9 UCI was unable to find it in reasonable amount of time (part of 6 man
>Tb's installed on my comp. AMD 2600+, afer 2 hours)
>8/8/8/4k1p1/5PPp/3rb2P/4R1K1/8 b - -
>Any engine can find a mate ?
Yace, with typical default settings (using 5-men TBs and bitbases) shows a mate
score in 2 seconds.
2563604 1.923 13.08 14. 1...Kxf4 2.Re1 Rd2+ 3.Kh1 Rf2 4.Re2 Kg3 5.Rxe3+
Rf3 6.Rxf3+ Kxf3 7.Kh2 Kf2 8.Kh1 Kg3 9.Kg1 Kxh3
10.Kf2 Kxg4 11.Ke3 h3 12.Kd2 h2 13.Kc1 Kf3
14.Kc2 g4 15.Kb3 g3 16.Ka4 h1=Q {1081}
2685149 1.983 13.48 15++ 1...Kxf4 2.Re1 Rd2+ 3.Kh1 Rf2 4.Re2 Kg3 5.Rxe3+
Rf3 6.Rxf3+ Kxf3 7.Kh2 Kf2 8.Kh1 Kg3 9.Kg1 Kxh3
10.Kf2 Kxg4 11.Kf1 Kf3 12.Ke1 h3 13.Kd1 g4
14.Kc2 g3 15.Kb2 g2 16.Kc3 h2 17.Kd4H h1=QH
{1081}
2731152 2.013 14.48 15++ 1...Kxf4 2.Re1 Rd2+ 3.Kh1 Rf2 4.Kg1 Re2+ 5.Kf1
Rxe1+ 6.Kxe1 Bd2+ 7.Kf2 Be1+ 8.Ke2 Kg3 9.Ke3
Kxh3 10.Kf3
2988432 2.174 Mat30 15++ 1...Kxf4 2.Re1 Rd2+ 3.Kh1 Bf2 4.Rb1 Kf3 5.Rc1H
Re2H 6.Rc3+H Re3H 7.Rc1H Re1+H 8.Rxe1H Bxe1H
9.Kg1H Bf2+H 10.Kf1H Ke3H 11.Kg2H Ke2H 12.Kh1H
Be3H 13.Kg2H Bd4H 14.Kh1H Kf3H 15.Kh2H Be3H
16.Kh1H Bg1H 17.Kxg1H Kg3H 18.Kf1H Kxh3H {EGTB}
19.Kg1 Kxg4! 20.Kg2 Kf4! 21.Kh2 g4! 22.Kg2 h3+!
23.Kh2 Kf3! 24.Kg1! g3! 25.Kh1 g2+ 26.Kg1! h2+
27.Kxh2 Kf2!! 28.Kh3 g1=Q! 29.Kh4 Qg6! 30.Kh3
Qg3# {1001}
27857496 17.335 Mat21 15t 1...Kxf4 2.Re1 Rd2+ 3.Kf1 Rf2+ 4.Kg1 Kf3 5.Rf1
Rxf1+ 6.Kxf1 Kg3 7.Ke2 Kxh3 8.Ke1 Bf2+ 9.Kf1
Kxg4H 10.Kxf2H Kf4H 11.Ke2H {160}
28574547 18.357 Mat21 15. 1...Kxf4 2.Re1 Rd2+ 3.Kf1 Rf2+ 4.Kg1 Kf3 5.Rf1
Rxf1+ 6.Kxf1 Kg3 7.Ke2 Kxh3 8.Ke1 Bf2+ 9.Kf1
Kxg4 10.Kxf2 Kf4 11.Ke2 {160}
97277018 56.582 Mat19 16t 1...Kxf4 2.Kf1 Rd2 3.Rxd2 Bxd2 4.Kf2H Be3+H
5.Ke2H Bd4H 6.Kd3H Kg3H 7.Kc4H Kxh3H 8.Kxd4H
{EGTB} 8...Kg3 9.Ke4 h3! 10.Ke5 h2! 11.Ke6 h1=Q
12.Kd6! Qd1+ 13.Ke6 Kf4! 14.Kf6 Qd5 15.Kg6!
Kxg4 16.Kh6 Qf5 17.Kg7 Kh5! 18.Kg8 Kh6 19.Kh8
Qf8# {1081}
103211158 1:08.5 Mat19 16. 1...Kxf4 2.Kf1 Rd2 3.Rxd2 Bxd2 4.Kf2 Be3+ 5.Ke2
Bd4 6.Kd3 Kg3 7.Kc4 Kxh3 8.Kxd4 {EGTB} 8...Kg3
9.Ke4 h3! 10.Ke5 h2! 11.Ke6 h1=Q 12.Kd6! Qd1+
13.Ke6 Kf4! 14.Kf6 Qd5 15.Kg6! Kxg4 16.Kh6 Qf5
17.Kg7 Kh5! 18.Kg8 Kh6 19.Kh8 Qf8# {1081}
120161806 1:18.2 Mat19 17t 1...Kxf4 2.Kf1 Rd2 3.Rxd2 Bxd2 4.Kf2 Be3+ 5.Ke2
Bd4 6.Kd3 Kg3 7.Kc4 Kxh3 8.Kxd4 {EGTB} 8...Kg3
9.Ke4 h3! 10.Ke5 h2! 11.Ke6 h1=Q 12.Kd6! Qd1+
13.Ke6 Kf4! 14.Kf6 Qd5 15.Kg6! Kxg4 16.Kh6 Qf5
17.Kg7 Kh5! 18.Kg8 Kh6 19.Kh8 Qf8# {1081}
Regards,
Dieter
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