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Subject: Re: Test Position, Will Your Program Play Kb1 or the Daring Nxf7!

Author: John Merlino

Date: 17:53:53 02/15/05

Go up one level in this thread


On February 15, 2005 at 20:30:13, Alan McCracken wrote:

>Again a position taken from one of my games. A game in 15.
>
>[D]r3k2r/1bp1bppp/pp2pn2/4N1B1/q2P4/3B4/PPP1QPPP/2KRR3 w kq - 0 13
>
>Terry

CM9_R1 on an AMD 2500 needs 1:37 to switch (back) to Nxf7. But the eval
difference between Nxf7 and Kb1 are only a few centipawns:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.99	2496		13.Nxf7 O-O 14.Nh6+ gxh6 15.Qxe6+
					Kh8
0:00	1/4	0.99	4965		13.Nxf7 O-O 14.Nh6+ gxh6 15.Qxe6+
					Kh8
0:00	1/5	0.73	21254		13.Nxf7 Qxa2 14.Nxh8 Qa1+ 15.Kd2
					Qa5+ 16.c3 Qxg5+ 17.Kc2
0:00	1/6	0.63	115498		13.Nxf7 Qxa2 14.Bxf6 Bxf6 15.Qh5 g6
0:01	1/7	0.13	273083		13.Nxf7 Qxa2 14.c4 O-O 15.Bb1 Qa4
					16.Nh6+ gxh6 17.Qxe6+ Kh8
0:01	1/7	0.48	378521		13.Bc4 O-O 14.Ng4 Nd5 15.Bxe7 Nxe7
					16.f3 Ng6 17.Bb3
0:02	1/7	0.62	464602		13.Kb1 O-O 14.Ng4 Nd5 15.Bxe7 Nxe7
					16.Be4 Nd5 17.Qf3
0:03	1/8	0.50	805017		13.Kb1 O-O 14.Ng4 Nd5 15.Bxe7 Nxe7
					16.Be4 Bd5 17.a3 Rad8
0:11	1/9	0.46	2626142		13.Kb1 O-O 14.Ng4 Nd5 15.Bxe7 Nxe7
					16.Qe5 Bxg2 17.Qxc7 Bf3 18.Qxe7
					Bxg4
0:35	1/10	0.90	8516946		13.Kb1 O-O 14.c4 h6 15.Bxf6 Bxf6
					16.Bc2 Qa5 17.Be4 Bxe4+ 18.Qxe4
					Rad8
1:17	1/11	0.94	19091186	13.Kb1 O-O 14.c4 h6 15.Bxf6 Bxf6
					16.Bc2 Qe8 17.Be4 Bxe4+ 18.Qxe4
					Qa4 19.Ka1 Bxe5 20.dxe5
1:37	1/11	1.00	24569812	13.Nxf7 O-O 14.Qxe6 Rxf7 15.Bc4
					Bd5 16.Bxd5 Nxd5 17.Qxd5 Bxg5+
					18.Kb1 Rf8 19.Qxg5 Rxf2 20.Rd2
2:59	1/12	0.95	47326424	13.Nxf7 O-O 14.Qxe6 Rxf7 15.Bc4
					Bd5 16.Bxd5 Nxd5 17.Qxd5 c6 18.Qxf7+
					Kxf7 19.Rxe7+ Kg6 20.Bf4 Qxa2

jm



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