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Subject: Re: Can your program find Bf2???

Author: Dan Ellwein

Date: 14:02:16 01/22/05

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On January 21, 2005 at 20:56:18, Dan Ellwein wrote:

>On January 21, 2005 at 03:47:50, Peter Skinner wrote:
>
>>In Polgar - Adams game today, Polgar missed 35. Bf2. Can your program find it?
>>
>>[d]1q4k1/5pp1/3pbn1p/b7/2r1PP2/2N1B2P/1PQ3P1/1B2R1K1 w - - bm Bf2

CM10_(default) finds Bf2 in less than 3 minutes...

P3/850

Time	Depth	Score	Positions	Moves
----	----	----	----		----
0:00	1/3	0.51	908		1.Ba2 Rb4 2.Bxe6 fxe6
0:00	1/3	0.51	908		1.Ba2 Rb4 2.Bxe6 fxe6
0:00	1/4	0.55	3181		1.Ba2 Rb4 2.Bxe6 fxe6 3.Re2
0:00	1/5	0.39	10848		1.Ba2 Rb4 2.Bxe6 fxe6 3.Re2 Rc4
0:00	1/5	0.42	15759		1.f5 Bd7 2.Qe2 Qc7 3.Rc1 Bxc3 4.Rxc3
					Rxc3 5.bxc3 Qxc3
0:00	1/6	0.41	30468		1.f5 Bd7 2.Qe2 Bxc3 3.bxc3 Rxc3
					4.Bd4 Bb5
0:01	1/7	0.36	136361		1.f5 Bd7 2.Bf2 Bc6 3.Ba2 Bxc3 4.bxc3
					Rxe4
0:04	2/8	0.32	387156		1.f5 Rb4 2.fxe6 Rxb2 3.exf7+ Kxf7
					4.Ba2+ Ke7 5.Qa4 Bxc3
0:16	2/9	0.37	1424676		1.f5 Bc8 2.Bf2 Rb4 3.Re2 Ba6 4.Rd2
					Bb6 5.Ba2 Bxf2+ 6.Rxf2
0:33	2/10	0.37	3039545		1.f5 Bc8 2.Bf2 Rb4 3.Re2 Ba6 4.Rd2
					Bb6 5.Ba2 Bxf2+ 6.Rxf2
1:34	3/11	0.24	8650107		1.f5 Bd7 2.Bf2 Qb7 3.e5 dxe5 4.Rxe5
					Qc7 5.Re2 Bb6 6.Qd2 Bxf2+ 7.Rxf2
2:57	3/11	0.28	16356969	1.Bf2 Rb4 2.Re2 Bb6 3.Qd2 Bc4 4.Bd3
					Bxd3 5.Qxd3 Bxf2+ 6.Rxf2 Rxb2 7.Rxb2
					Qxb2 8.Kh2
6:37	3/12	0.27	36579547	1.Bf2 Rb4 2.Re2 Bb6 3.Bxb6 Qxb6+
					4.Kh2 Qc5 5.Nd5 Qxc2 6.Rxc2 Rxe4
					7.Nxf6+ gxf6
Dan
>
>takes 40 minutes for CM10_offsetX to find Bf2...
>
>P3/850
>
>Time	Depth	Score	Positions	Moves
>----	----	----	----		----
>0:00	1/3	0.97	770		1.Ba2 Bxc3 2.bxc3 Rxe4
>0:00	1/3	0.97	770		1.Ba2 Bxc3 2.bxc3 Rxe4
>0:00	1/4	0.97	2847		1.Ba2 Bxc3 2.bxc3 Rxe4
>0:00	1/5	0.87	10335		1.Ba2 Rb4 2.Bxe6 fxe6 3.Re2 Rc4
>0:00	1/5	0.93	15988		1.f5 Bd7 2.Qe2 Bxc3 3.bxc3 Rxc3
>					4.Bd4
>0:00	1/6	0.87	33788		1.f5 Bd7 2.Bf2 d5 3.exd5 Nxd5 4.Qd3
>0:02	1/7	0.87	123144		1.f5 Bd7 2.Bf2 Bc6 3.Qe2 Rb4 4.Qa6
>0:06	1/8	0.73	361019		1.f5 Rb4 2.fxe6 Rxb2 3.exf7+ Kxf7
>					4.Ba2+ Ke7 5.Qa4 Bxc3
>0:17	1/9	0.79	1088500		1.f5 Bd7 2.Ba2 Bxc3 3.bxc3 Rxe4
>					4.Bd5 Rxe3 5.Bxf7+ Kxf7 6.Rxe3
>0:39	1/10	0.79	2556557		1.f5 Bd7 2.Ba2 Bxc3 3.bxc3 Rxe4
>					4.Bd5 Rxe3 5.Bxf7+ Kxf7 6.Rxe3
>2:24	2/11	0.65	9570256		1.f5 Bd7 2.Bf2 Qb7 3.Re2 Bb5 4.Re3
>					Bb6 5.Re1 Bc6 6.Bxb6 Qxb6+ 7.Qf2
>8:35	2/12	0.62	36129780	1.f5 Bc8 2.Qe2 Rb4 3.Bc1 Bb6+ 4.Kh1
>					Bb7 5.Bf4 Bd4 6.Ba2 Bc6 7.Qd3
>39:59	2/12	0.70	159687300	1.Bf2 Rb4 2.Re2 Bb6 3.Bxb6 Qxb6+
>					4.Rf2 Qc5 5.Qd2 Bd7 6.Qe2 Bc6 7.e5
>Dan
>
>>
>>Peter



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