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Subject: Re: Mate in 29?

Author: John Merlino

Date: 14:27:58 04/13/05

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On April 13, 2005 at 17:17:37, Tom Brake wrote:

>On April 13, 2005 at 14:25:51, John Merlino wrote:
>
>>On April 13, 2005 at 12:24:40, pavel wrote:
>>
>>>[D] 3n4/rBp1p3/2P5/2PK4/k2N4/pp2R3/bppB2Rp/q1n1r1b1 w - - 0 1
>
>This is very odd then, as I get this from CM9K on an Athlon 64:
>
>Time	Depth	Score	Positions	Moves
>0:00	1/3	-23.58	3320		1.Rc3 Re5+ 2.Kxe5 Bxd4+ 3.Kxd4
>					h1=Q 4.Rc4+ Kb5
>0:00	1/4	-24.40	29618		1.Rc3 e6+ 2.Nxe6 Re5+ 3.Kxe5 Nd3+
>					4.Kd5 h1=Q
>0:00	1/4	0.00	44003		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rc4+ Kb5 5.Rb4+
>0:00	1/5	0.00	74005		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rc4+ Kb5 5.Rb4+
>0:00	1/6	0.00	133023		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rc4+ Kb5 5.Rb4+
>0:01	1/7	0.00	319562		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rc4+ Kb5 5.Rb4+
>0:03	1/8	0.00	739682		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rc4+ Kb5 5.Rb4+
>0:08	1/9	Mate29	2068494		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rbe4+ Kb5 5.Nd4+ Ka4 6.Ne2+ Kb5
>					7.Nc3+ Ka5 8.Nxa2+ Kb5 9.Nc3+ Ka5
>					10.Ne2+ Kb5 11.Nd4+ Ka4 12.Nf3+
>					Kb5 13.Rb4+ Ka5 14.Rbxb3+ Ka4 15.Rb4+
>					Ka5 16.Rbe4+ Kb5 17.Nd4+ Ka4 18.Ne2+
>					Kb5 19.Nc3+ Ka5 20.Na2+ Kb5 21.Ba6+
>					Rxa6 22.Nc3+ Ka5 23.Ne2+ Kb5 24.Nd4+
>					Ka4 25.Nf3+ Kb5 26.Rb4+ Ka5 27.Rb6+
>					Ka4 28.Rxa6+ Kb5 29.Ra5#
>0:12	2/10	Mate29	3367414		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rbe4+ Kb5 5.Nd4+ Ka4 6.Ne2+ Kb5
>					7.Nc3+ Ka5 8.Nxa2+ Kb5 9.Nc3+ Ka5
>					10.Ne2+ Kb5 11.Nd4+ Ka4 12.Nf3+
>					Kb5 13.Rb4+ Ka5 14.Rbxb3+ Ka4 15.Rb4+
>					Ka5 16.Rbe4+ Kb5 17.Nd4+ Ka4 18.Ne2+
>					Kb5 19.Nc3+ Ka5 20.Na2+ Kb5 21.Ba6+
>					Rxa6 22.Nc3+ Ka5 23.Ne2+ Kb5 24.Nd4+
>					Ka4 25.Nf3+ Kb5 26.Rb4+ Ka5 27.Rb6+
>					Ka4 28.Rxa6+ Kb5 29.Ra5#
>0:34	2/11	Mate29	9736612		1.Rg4 h1=Q+ 2.Nf3+ Kb5 3.Rb4+ Ka5
>					4.Rbe4+ Kb5 5.Nd4+ Ka4 6.Ne2+ Kb5
>					7.Nc3+ Ka5 8.Nxa2+ Kb5 9.Nc3+ Ka5
>					10.Ne2+ Kb5 11.Nd4+ Ka4 12.Nf3+
>					Kb5 13.Rb4+ Ka5 14.Rbxb3+ Ka4 15.Rb4+
>					Ka5 16.Rbe4+ Kb5 17.Nd4+ Ka4 18.Ne2+
>					Kb5 19.Nc3+ Ka5 20.Na2+ Kb5 21.Ba6+
>					Rxa6 22.Nc3+ Ka5 23.Ne2+ Kb5 24.Nd4+
>					Ka4 25.Nf3+ Kb5 26.Rb4+ Ka5 27.Rb6+
>					Ka4 28.Rxa6+ Kb5 29.Ra5#

Wow, that is odd. What personality are you using? I tried both the R1 and the
default CM9000 personalities on my AMD 2500, and neither of them showed mate in
under two minutes.

jm



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