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Subject: Re: Test position

Author: Yar

Date: 13:18:44 06/13/05

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In your line after 4.g4: instead of rf8!? black should play rf4! -+

On June 13, 2005 at 14:24:35, John Merlino wrote:

>On June 13, 2005 at 13:42:04, Yar wrote:
>
>>How long does it to your engine to find Qf5 ?
>>[D] 5r1k/6bp/p1p1Q3/P2pn3/1Pp2q2/4R3/2R2PPN/6K1 b - -
>>
>>With best regards,
>>
>>Yar
>
>CM9_R1 on an AMD 2500 does find it eventually, but the score is not convincing:
>
>Time	Depth	Score	Positions	Moves
>0:00	1/6	-0.45	87701		1...Qd4 2.Rce2 c3 3.Nf1 Ng4 4.Rxc3
>					Qxc3 5.Qxg4
>0:01	1/7	-0.49	234086		1...Qd4 2.Nf1 Nd3 3.Qd6 Qh4 4.Ng3
>					Qf4 5.Qxf4 Rxf4 6.Rxd3 cxd3 7.Rxc6
>0:02	1/8	-0.49	533694		1...Qd4 2.Nf1 Nd3 3.Qd6 Qh4 4.Ng3
>					Qf4 5.Qxf4 Rxf4 6.Rxd3 cxd3 7.Rxc6
>0:02	1/8	-0.54	630802		1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.g4
>					d3 5.Rd2 Rf4
>0:03	1/9	-0.50	965714		1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.Rxe5
>					Rxe5 5.Rxc4 Re1+ 6.Nf1 d3 7.Rxc6
>0:06	1/10	-0.71	1815159		1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.Rxe5
>					Rxe5 5.Nf3 Rf5 6.Nh4 Rb5 7.Rxc4
>0:14	1/11	-0.26	3829836		1...d4 2.g3 Qf5 3.Qxf5 Rxf5 4.Rxe5
>					Rxe5 5.Rxc4 Re6 6.Nf3 d3 7.Kf1 Rd6
>0:58	1/11	-0.43	15582264	1...Nd3 2.Rf3 Qd4 3.Rxf8+ Bxf8
>					4.Rd2 Qg7 5.Qxc6 Nxb4 6.Qc8 Qf6
>					7.Qc7 Nd3 8.Nf3
>1:51	1/12	-0.56	30475782	1...Nd3 2.Rf3 Qh6 3.Rxf8+ Bxf8
>					4.Qc8 Qg7 5.Ng4 h5 6.Ne3 Nxb4 7.Rd2
>					Qf6 8.Kf1
>3:16	2/13	-0.31	55003647	1...Nd3 2.Rf3 Qb8 3.Rxf8+ Bxf8
>					4.Nf3 Qxb4 5.Re2 Qd6 6.Qc8 Qf6
>					7.Re8 Kg8 8.Qg4+ Qg7 9.Qf5
>6:12	2/13	-0.48	103601247	1...Qg5 2.g3 Nd3 3.Rf3 Rxf3 4.Nxf3
>					Qf6 5.Qe8+ Bf8 6.Kg2 Nxb4 7.Re2
>					c3 8.Ne5 c2 9.Re1 Na2
>6:53	2/13	-0.58	115889058	1...Qf5 2.Qxf5 Rxf5 3.Rce2 d4 4.g4
>					Rf8 5.Rxe5 d3 6.R5e3 dxe2 7.Rxe2
>					c3 8.Kf1 Bh6 9.Ke1
>8:23	3/14	-0.54	142354151	1...Qf5 2.Qxf5 Rxf5 3.Rce2 d4 4.g4
>					Rf8 5.Rxe5 Bxe5 6.Rxe5 d3 7.Nf1
>					c3 8.Ne3 d2 9.Rc5 Re8 10.Nd1 Re1+
>					11.Kg2
>
>jm



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