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Subject: Re: great mate in 4

Author: Jihun Lee

Date: 12:04:01 02/11/03

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On February 11, 2003 at 04:52:50, Vincent Lejeune wrote:

>
>i don't know why some programs need so much time to find it :
>some programs (fritz, hiarcs,...) stop just after findind a longer mate :(
>
>Gambit tiger 2.0 need 28 sec on a 400 Mhz computer
>
>[d]8/2pB4/6p1/1PK2pPb/1P3pk1/5N1p/4Q2P/8 w - - 0 1

Chessmaster 9000 (Utz12p) on an Athlon XP 2000+ finds it in 16 seconds:

Time	Depth	Score	Positions	Moves
0:00	1/3	15.73	2302		1.Qf2 c6 2.Ne5+ Kxg5 3.bxc6 Kf6
					4.Qh4+ g5 5.Qxh5 Kxe5 6.Qxg5
0:00	1/4	18.39	9225		1.Qf2 c6 2.Ne5+ Kxg5 3.bxc6 Be2
					4.Qxe2 Kf6
0:00	1/5	22.00	26399		1.Qf2 c6 2.Ne5+ Kxg5 3.bxc6 Be2
					4.c7 Kf6 5.Qh4+ Kg7 6.Qe7+ Kh6
					7.c8=Q
0:00	1/5	Mate08	30719		1.Be6 c6 2.Ne5+ Kh4 3.Qe1+ Kxg5
					4.Nf7+ Kf6 5.Qe5+ Ke7 6.Bd5+ Kf8
					7.Qh8+ Ke7 8.Qd8#
0:00	1/5	Mate05	38541		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:00	1/6	Mate05	47542		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:00	1/7	Mate05	61749		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:00	1/8	Mate05	93280		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:00	1/9	Mate05	160198		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:00	1/10	Mate05	267407		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:01	1/11	Mate05	567375		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:03	2/12	Mate05	1107036		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:09	3/13	Mate05	3937204		1.Nd4+ Kh4 2.Qf2+ Kxg5 3.Ne6+ Kh6
					4.Qd4 Kh7 5.Qg7#
0:16	3/13	Mate04	7899283		1.Bc8 c6 2.Ba6 cxb5 3.Qxb5 Kxf3
					4.Qe2#
0:17	4/14	Mate04	8485202		1.Bc8 c6 2.Ba6 cxb5 3.Qxb5 Kxf3
					4.Qe2#
0:18	5/15	Mate04	8745429		1.Bc8 c6 2.Ba6 cxb5 3.Qxb5 Kxf3
					4.Qe2#
0:18	6/16	Mate04	8797087		1.Bc8 c6 2.Ba6 cxb5 3.Qxb5 Kxf3
					4.Qe2#
0:18	7/17	Mate04	8848795		1.Bc8 c6 2.Ba6 cxb5 3.Qxb5 Kxf3
					4.Qe2#



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