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Subject: Re: Fun on playchess with new update - Testposition

Author: John Merlino

Date: 09:43:27 10/21/05

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On October 21, 2005 at 06:18:06, Eduard Nemeth wrote:

>OK, after Nf4+ I played not the best move, but I won.
>
>Mekki_nagy - Solist, Wertungspartie, 3m + 0s 2005
>
>[D]5r2/p1p2qpk/1p1pp1np/4p3/4P3/2P1NrP1/PPP1QPKP/3R1R2 b - - 0 1
>
>Anyway! Which program can find here 20...Nf4+ ?

CM9_R1 on a P4-2.4 finds Nf4+ in less than one second:

Time	Depth	Score	Positions	Moves
0:00	1/5	-0.32	56000		1...d5 2.exd5 exd5 3.Nxd5 c6 4.Ne3
					Rf6
0:00	1/6	-0.10	71947		1...d5 2.exd5 exd5 3.Nxd5 c6 4.Nb4
					c5 5.Nd5
0:00	1/6	-0.39	110455		1...Ne7 2.Kg1 Qh5 3.Qc4 Qg5 4.Qa4
0:00	1/6	-0.47	118754		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 R3xf4 5.b3 R4f6
0:00	1/7	-0.41	159339		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 R3xf4 5.b3 R8f6
0:01	1/8	-0.34	281522		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 R8xf4 5.Rfe1 Qg6+ 6.Kf1 b5
0:03	1/9	-1.29	685825		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 R8xf4 5.Rfe1 Qg6+ 6.Kf1 Rh3
					7.Qd3 Rxh2 8.Qxg6+ Kxg6
0:05	1/10	-0.83	1151925		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 Rf6 5.f5 R3xf5 6.f3 Rxf3
					7.Rxf3 Rxf3
0:10	1/11	-0.81	2561833		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 Rf6 5.f5 R3xf5 6.f3 Rxf3
					7.Rxf3 Rxf3 8.Re1
0:21	1/12	-1.21	5479102		1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 Rf6 5.f5 exf5 6.Rfe1 Rg6+
					7.Kf1 Rh3 8.Qd3 Qh1+ 9.Ke2 Qf3+
					10.Kd2 Rxh2 11.Kc1 Rxf2
0:43	1/13	-1.45	11444617	1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 Rf6 5.f5 exf5 6.Rfe1 Rg6+
					7.Kf1 Rh3 8.Qd3 Qh1+ 9.Ke2 Qf3+
					10.Kd2 f4 11.Kc1 fxe3 12.Rxe3
1:51	2/14	-2.31	29733533	1...Nf4+ 2.gxf4 Qg6+ 3.Kh1 Qxe4
					4.Kg1 Rf6 5.Qc4 Rg6+ 6.Kh1 Qb7
					7.Nd5 exd5 8.Qxd5 Qxd5 9.Rxd5 Rxf4
					10.Rd2 Rgf6 11.Kg1

jm



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