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Subject: Re: Mate in 14 problem

Author: John Merlino

Date: 19:04:34 01/04/02

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On January 04, 2002 at 21:09:34, Robert Basham wrote:

>My Hiarcs7 program
>ann. mate in 14...in about 11 sec.
>
>That's pretty good for being on my slow computor, i think...!
>
>
>WK g4
>WR c8
>WB b4
>
>BK  g1
>BB  h1
>BP  a2  c2  e2  g2
>
>
>from "Chessboard Magic".... by Irving Chernev

Chessmaster 8000 is still the champion at this kind of stuff. It finds it in
less than one second on my PIII-600 (this one isn't too hard because every White
move except for one is a check):

Time	Depth	Score	Positions	Moves
0:00	2/3	-1.40	2342		1.Bc5+ Kf1 2.Rf8+ Ke1 3.Bb4+ Kd1
					4.Rd8+ Kc1 5.Bd2+ Kb2 6.Rb8+ Ka3
					7.Ra8+ Kb3
0:00	3/4	0.00	12512		1.Bc5+ Kf1 2.Rf8+ Ke1 3.Bb4+ Kd1
					4.Rd8+ Kc1 5.Ba3+ Kb1 6.Rb8+ Ka1
					7.Bb2+ Kb1 8.Ba3+
0:00	4/5	Mate14	50706		1.Bc5+ Kf1 2.Rf8+ Ke1 3.Bb4+ Kd1
					4.Rd8+ Kc1 5.Ba3+ Kb1 6.Rb8+ Ka1
					7.Bb2+ Kb1 8.Be5+ Kc1 9.Bf4+ Kd1
					10.Rd8+ Ke1 11.Bg3+ Kf1 12.Rf8+
					Kg1 13.Kh3 c1=Q 14.Bh2#
0:01	5/6	Mate14	163705		1.Bc5+ Kf1 2.Rf8+ Ke1 3.Bb4+ Kd1
					4.Rd8+ Kc1 5.Ba3+ Kb1 6.Rb8+ Ka1
					7.Bb2+ Kb1 8.Be5+ Kc1 9.Bf4+ Kd1
					10.Rd8+ Ke1 11.Bg3+ Kf1 12.Rf8+
					Kg1 13.Kh3 c1=Q 14.Bh2#
0:05	6/7	Mate14	546227		1.Bc5+ Kf1 2.Rf8+ Ke1 3.Bb4+ Kd1
					4.Rd8+ Kc1 5.Ba3+ Kb1 6.Rb8+ Ka1
					7.Bb2+ Kb1 8.Be5+ Kc1 9.Bf4+ Kd1
					10.Rd8+ Ke1 11.Bg3+ Kf1 12.Rf8+
					Kg1 13.Kh3 c1=Q 14.Bh2#

jm



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