Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Fruit finds mate in 45 Movei find it faster

Author: Joachim Rang

Date: 07:30:27 11/03/05

Go up one level in this thread


On November 03, 2005 at 08:40:02, Ignacio Santos Crespo wrote:

>Hi Uri,
>
>Thank you for your answer. The following position is interesting: Fruit crash
>and Movei crash after depth 16.
>
>Mate in 69
>
>[D]1K1n2q1/1p4pR/1prPPpPn/1RB1p1rP/8/1B2p3/2p2b2/1k2N3 w - - 0 1
>
>Regards,
>Ignacio.

Hi,

thanks for pointing that out. I'm not sure what the problem is, since the latest
Dev-Version does not crash but announces a mate in 69 in two seconds:

FEN: 1K1n2q1/1p4pR/1prPPpPn/1RB1p1rP/8/1B2p3/2p2b2/1k2N3 w - - 0 1

Fruit_051103:
  1/11	00:00	         264	0	-10,87	1.Bxc2+ Ka2
  2/18	00:00	      13.872	0	-13,04	1.Bxc2+ Ka1 2.Bxe3 Bxe3
  2/18	00:00	      15.592	0	-12,22	1.Bd5+ Kc1 2.Nd3+ Kd2
  3/22	00:00	      22.594	0	-12,48	1.Bd5+ Kc1 2.Ba3+ Kd1 3.Bxc6 Nxe6+ 4.Kxb7
Bxe1 5.Kxb6 c1Q 6.Bxc1 Kxc1
  3/22	00:00	      24.110	0	-11,77	1.Bc4+ Kc1 2.Ba3+ Kd2 3.Nf3+ Kc3 4.Nxg5 Rxc4
  3/27	00:00	      42.885	0	-11,58	1.e7 Ndf7+ 2.Ka7 Nxd6 3.Bxg8+ Nxb5+ 4.Kxb7
Rxc5 5.e8Q c1Q
  4/27	00:00	      60.626	0	-9,82	1.e7 Ndf7+ 2.Ka7 Nxd6 3.Bxd6 Qe8 4.Bd5+ Kc1
5.Bxc6 bxc6
  4/27	00:00	      61.523	0	 0,00	1.Bc4+ Kc1 2.Ba3+ Kd2 3.Bb4+ Kc1 4.Ba3+
  5/153	00:00	      67.966	0	 0,00	1.Bc4+ Kc1 2.Ba3+ Kd2 3.Bb4+ Kc1 4.Ba3+
  6/159	00:00	      86.102	0	 0,00	1.Bc4+ Kc1 2.Ba3+ Kd2 3.Bb4+ Kc1 4.Ba3+
  7/231	00:01	     428.267	0	+M73	1.Bc4+ Kc1 2.Ba3+ Kd2 3.Bb4+ Kc1 4.Nd3+ Kd1
5.Nxf2+ exf2 6.Rd5+ Kc1 7.Ba3+ Kb1 8.Rb5+ Ka1 9.Bb2+ Kb1 10.Bd4+ Kc1 11.Be3+ Kd1
12.Rd5+ Ke1 13.Bd2+ Kd1 14.Bxg5+ Ke1 15.Bd2+ Kd1 16.Bb4+ Kc1 17.Ba3+ Kb1 18.Rb5+
Ka1 19.Bb2+ Kb1 20.Bxe5+ Kc1 21.Bf4+ Kd1 22.Rd5+ Ke1 23.Bd2+ Kd1 24.Bb4+ Kc1
25.Ba3+ Kb1 26.Rb5+ Ka1 27.Bb2+ Kb1 28.Bxf6+ Kc1 29.Bg5+ Kd1 30.Rd5+ Ke1 31.Bd2+
Kd1 32.Bb4+ Kc1 33.Ba3+ Kb1 34.Rb5+ Ka1 35.Bb2+ Kb1 36.Bxg7+ Kc1 37.Bxh6+ Kd1
38.Rd5+ Ke1 39.Re5+ Kd1 40.Be2+ Ke1 41.Bb5+ Kd1 42.Rd5+ Ke1 43.Bd2+ Kd1 44.Bf4+
Ke1 45.Re5+ Kd1 46.Be2+ Ke1 47.Bg4+ Kf1 48.Bh3+ Kg1 49.Rg5+ Kh1 50.Bg2+ Kg1
51.Bxc6+ Kf1
  8/231	00:02	   1.498.941	0	+M69	1.Bc4+ Kc1 2.Ba3+ Kd2 3.Bb4+ Kc1 4.Nd3+ Kd1
5.Nxf2+ exf2 6.Rd5+ Kc1 7.Ba3+ Kb1 8.Rb5+ Ka1 9.Bb2+ Kb1 10.Bd4+ Kc1 11.Be3+ Kd1
12.Rd5+ Ke1 13.Bd2+ Kd1 14.Bxg5+ Ke1 15.Bd2+ Kd1 16.Bb4+ Kc1 17.Ba3+ Kb1 18.Rb5+
Ka1 19.Bb2+ Kb1 20.Bxe5+ Kc1 21.Bf4+ Kd1 22.Rd5+ Ke1 23.Bd2+ Kd1 24.Bb4+ Kc1
25.Ba3+ Kb1 26.Rb5+ Ka1 27.Bb2+ Kb1 28.Bxf6+ Kc1 29.Bg5+ Kd1 30.Rd5+ Ke1 31.Bd2+
Kd1 32.Bb4+ Kc1 33.Ba3+ Kb1 34.Rb5+ Ka1 35.Bb2+ Kb1 36.Bxg7+ Kc1 37.Bxh6+ Kd1
38.Rd5+ Ke1 39.Bd2+ Kd1 40.Bf4+ Ke1 41.Re5+ Kd1 42.Be2+ Ke1 43.Bg4+ Kf1 44.Bh3+
Kg1 45.Rg5+ Kh1 46.Bg2+ Kg1 47.Bxc6+ Kf1 48.Bb5+ Ke1 49.Re5+ Kd1 50.Be2+ Ke1
51.Bg4+ Kf1
Best move: Bc4, Value: +Mate in 69, Depth: 8/231, Time: 00:08,510, 5.180.000
Nodes, 631.476 N/sec

Arena does not crash either so it is definitely in the public release. I will
try to figure it out.

Joachim



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.