Author: Dieter Buerssner
Date: 10:55:55 11/10/03
Go up one level in this thread
On November 10, 2003 at 06:08:45, K. Burcham wrote:
>mate in 21. takes Shredder 7 over 13 minutes to find.
>curious how long it takes CM9000 and Tiger 15.
>
>24/50 13:44 +M21 1.Qa1+ Kg8
>Chessville weekly position of the week. mate in 21.
>
> 5q1k/8/Q5K1/6p1/8/6b1/8/8 w - -
Yace PB with TBs, P4 2.53 GHz, 0.3 seconds:
266678 0.286 5.15 14. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8 14.Qc3+ Kg8 15.Qc4+ Kh8 16.Qd4+ Kg8
17.Qd7 Qd6+ 18.Qxd6 g4 19.Qe6+ Kf8
266712 0.287 Mat21 15++ 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
{-430}
504557 0.500 Mat21 15t 1.Qa1+ Kg8 2.Qa2+ Kh8H 3.Qb2+H Kg8H 4.Qb3+H
Kh8H 5.Qb2+H Kg8H 6.Qb3+H Kh8H 7.Qb2+HR {-430}
577761 0.562 Mat21 15. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qb2+ Kg8 6.Qb3+ Kh8 7.Qb2+ {-430}
877871 0.843 Mat21 16t 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8H 7.Qc3+H Kg8H 8.Qc4+H
Kh8H 9.Qc3+HR {-430}
958602 0.915 Mat21 16. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qc3+ Kg8 8.Qc4+ Kh8
9.Qc3+ {-430}
1387368 1.302 Mat21 17t 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8H
9.Qh1+H Bh4H 10.Qa1+H Kg8H 11.Qa2+H Kh8H
12.Qb2+H Kg8H 13.Qb3+H Kh8H 14.Qc3+H Kg8H
15.Qc4+H Kh8H 16.Qd4+H Kg8H 17.Qd7H Qf6+H
18.Kxf6H {EGTB} 18...g4+! 19.Kg6! Be7! 20.Qxe7!
g3 21.Qg7# {921}
1520355 1.416 Mat21 17. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8 14.Qc3+ Kg8 15.Qc4+ Kh8 16.Qd4+ Kg8
17.Qd7 Qf6+ 18.Kxf6 {EGTB} 18...g4+! 19.Kg6!
Be7! 20.Qxe7! g3 21.Qg7# {921}
Without any TBs: Qa1+ with score over +5 in 8 s. Mate in 22 in 31 s, mate in 21
in 45 s.
13911854 13.297 6.04 16. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8 14.Qc3+ Kg8 15.Qc4+ Kh8 16.Qd4+ Kg8
17.Qd7 Qf5+ 18.Qxf5 Bg3
13953632 13.336 6.44 17++ 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Be5 8.Qxe5+ Kg8
9.Qe6+ Qf7+ 10.Qxf7+ Kh8
14194665 13.522 7.44 17++ 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Be5 8.Qxe5+ Kg8
9.Qe6+ Qf7+ 10.Qxf7+ Kh8
14204138 13.531 12.44 17++ 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Be5 8.Qxe5+ Kg8
9.Qe6+ Qf7+ 10.Qxf7+ Kh8
36116784 31.399 Mat22 17t 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8H 14.Qb2+H Kg8H 15.Qb3+H Kh8H
16.Qb2+HR {-430}
37215952 32.320 Mat22 17. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8 14.Qb2+ Kg8 15.Qb3+ Kh8 16.Qb2+
{-430}
53095016 44.986 Mat21 18t 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8 14.Qc3+ Kg8 15.Qc4+ Kh8 16.Qd4+ Kg8
17.Qd7 Qf6+ 18.Kxf6 g4+ 19.Kg6 Be7 20.Qxe7 Kh8
21.Qg7#H {921}
54920100 46.467 Mat21 18. 1.Qa1+ Kg8 2.Qa2+ Kh8 3.Qb2+ Kg8 4.Qb3+ Kh8
5.Qc3+ Kg8 6.Qc4+ Kh8 7.Qd4+ Kg8 8.Qd5+ Kh8
9.Qh1+ Bh4 10.Qa1+ Kg8 11.Qa2+ Kh8 12.Qb2+ Kg8
13.Qb3+ Kh8 14.Qc3+ Kg8 15.Qc4+ Kh8 16.Qd4+ Kg8
17.Qd7 Qf6+ 18.Kxf6 g4+ 19.Kg6 Be7 20.Qxe7 Kh8
21.Qg7# {921}
I feel this version extends too much ...
Regards,
Dieter
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.