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Subject: Re: (OT) A Preview of the Anthology of Chess Combinations, 3rd Edition

Author: Dan Ellwein

Date: 13:36:54 04/22/04

Go up one level in this thread


On April 22, 2004 at 13:48:05, John Merlino wrote:

>On April 22, 2004 at 13:22:12, John Merlino wrote:
>
>>On April 22, 2004 at 10:34:36, José Antônio Fabiano Mendes wrote:
>>
>>>     Please see ==> http://www.chesscafe.com/informant/informant.htm
>>>                    [six interesting test positions]
>>
>>Here are the positions:
>>
>
>Here is CM_SKR's output on an AMD 2500+:
>
snip
>
>>
>>[D]2r1r1k1/pb1p1p2/3P1qpp/8/3N4/2P3QP/P2KBPPn/R5R1 b - - 0 1
>>
>>1...Nf3!!
>
>Ok. This one was tough. Just under five minutes, but the score is only a
>draw.... The hard part is seeing all the way down to 6...Re5+ in the main line
>(which The King sees up to that crucial point).

hi John

yes this is a tough one...

after 2 hours CM9_OffSet does not consider ...Nf3

P3/850

Time	Depth	Score	Positions	Moves
0:00	1/3	0.35	6894		1...Bd5 2.Bd3 Bc4 3.Rae1 Rxe1 4.Rxe1
					Bxa2
0:00	1/4	0.50	31539		1...Bd5 2.Rh1 Re4 3.Rad1
0:00	1/4	0.48	46460		1...Rc5 2.Rab1 Bd5 3.Bb5 Bxa2 4.Bxd7

0:01	1/5	0.48	93183		1...Rc5 2.Rab1 Bd5 3.Bb5 Bxa2 4.Bxd7

0:01	1/5	0.39	130591		1...Re4 2.Rac1 Rxd4+ 3.cxd4 Qxd4+
					4.Bd3 Qb4+ 5.Kd1 Rxc1+ 6.Kxc1
0:02	1/6	0.35	203257		1...Re4 2.Rac1 Bd5 3.Rh1 Rxd4+
					4.cxd4 Qxd4+ 5.Bd3 Qb4+ 6.Kd1 Rxc1+
					7.Kxc1
0:12	1/7	-0.24	965102		1...Re4 2.Rgc1 Rxc3 3.Rxc3 Qxd4+
					4.Qd3 Qxf2 5.Rc8+ Kh7 6.Rc7
0:21	1/8	-0.14	1743844		1...Re4 2.Rac1 Rxd4+ 3.cxd4 Qxd4+
					4.Bd3 Qb4+ 5.Kd1 Rxc1+ 6.Kxc1 Qa3+
					7.Kd2 Qxa2+ 8.Ke3 Qe6+ 9.Kd2
0:48	1/9	-0.25	4124336		1...Re4 2.Rac1 Rxc3 3.Rxc3 Rxd4+
					4.Ke1 Rxd6 5.Qe3 Re6 6.Qd2 d5
3:40	1/10	-0.57	19054534	1...Re4 2.Rgd1 Rxd4+ 3.cxd4 Bxg2
					4.Qe3 Qxd6 5.a3 Qe6 6.Qxe6 dxe6
7:34	1/11	-0.61	40478181	1...Re4 2.Rgd1 Rxd4+ 3.cxd4 Qxd4+
					4.Ke1 Qe4 5.Rd2 Qxg2 6.Qxg2 Bxg2
					7.Rd3 Rc2 8.Ra3 a5 9.h4
11:06	1/11	-0.72	61146409	1...h5 2.Rgc1 h4 3.Qxh2 Qxf2 4.Qg1
					Qf4+ 5.Kd1 Re3 6.Qf1 Qxd6 7.Kd2 Qg3
15:12	1/12	-0.72	84052539	1...h5 2.Rgc1 h4 3.Qxh2 Qxf2 4.Qg1
					Qf4+ 5.Kd1 Qxd6 6.Rab1 Be4 7.Rb5
					Qf4 8.Ra5
38:12	1/12	-1.08	201640120	1...Re4 2.Rgc1 Rxc3 3.Rxc3 Qxd4+
					4.Bd3 Ba6 5.Rh1 Bxd3 6.Qxd3 Qxf2+
					7.Kd1 Qxg2 8.Rc8+ Kh7 9.Rxh2 Qxh2
					10.Qxe4 Qxh3
2:05:02	1/13	-1.05	693417835	1...Re4 2.Rgd1 Rce8 3.Rab1 Rxd4+
					4.cxd4 Qxd4+ 5.Ke1 Qe4 6.Rb2 Qc4
					7.Qd3 Bxg2 8.Rb8 Nf3+ 9.Qxf3 Rxb8
					10.Qxg2 Qxa2 11.Qe4
Dan

>
>Time	Depth	Score	Positions	Moves
>0:00	1/3	1.41	3709		1...Bd5 2.f4 Qxd6 3.Qxh2
>0:00	1/3	1.22	10981		1...Re4 2.Rad1 Rxd4+ 3.cxd4 Qxd4+
>					4.Ke1
>0:00	1/4	0.98	23081		1...Re4 2.Rgd1 Bd5 3.Kc1
>0:00	1/5	1.17	62695		1...Re4 2.Rgd1 Bd5 3.Ke1 Qe5 4.Qxe5
>					Rxe5
>0:00	1/6	1.17	174449		1...Re4 2.Rgd1 Bd5 3.Ke1 Qe5 4.Qxe5
>					Rxe5
>0:04	1/7	0.83	1165109		1...Re4 2.Rgc1 Rxd4+ 3.cxd4 Qxd4+
>					4.Qd3 Qf4+ 5.Kd1 Rxc1+ 6.Rxc1 Qxf2
>					7.Rc7 Bxg2 8.Rxd7
>0:09	1/8	0.74	2650006		1...Re4 2.Rac1 Rxc3 3.Rxc3 Qxd4+
>					4.Bd3 Rf4 5.Ke2 Qe5+ 6.Qe3 Rxf2+
>					7.Kxf2 Qxc3
>0:24	1/9	0.68	6774155		1...Re4 2.Rac1 Rxc3 3.Rxc3 Qxd4+
>					4.Bd3 Ba6 5.Rh1 Bxd3 6.Rc8+ Kh7
>					7.Qxd3 Qxf2+ 8.Kd1
>1:11	1/10	0.57	20756523	1...Re4 2.Rgd1 Rxd4+ 3.cxd4 Bxg2
>					4.Qe3 Qxd6 5.a3 Qd5 6.Rac1 Qa5+
>					7.Rc3 Rxc3 8.Qxc3
>2:35	1/11	0.55	46200346	1...Re4 2.Rgd1 Rce8 3.Rab1 Rxd4+
>					4.cxd4 Qxd4+ 5.Ke1 Qc4 6.Rd2 Nf3+
>					7.gxf3 Ba6 8.Kf1 Rxe2 9.Rxe2 Qxe2+
>					10.Kg1 Qxa2 11.Re1
>4:57	1/11	0.00	90172733	1...Nf3+ 2.gxf3 Rxc3 3.Kxc3 Rc8+
>					4.Kd3 Ba6+ 5.Ke4 Re8+ 6.Kd5 Bb7+
>					7.Kc4 Ba6+ 8.Kd5
>5:34	1/12	0.00	102142715	1...Nf3+ 2.gxf3 Rxc3 3.Kxc3 Rc8+
>					4.Kd3 Ba6+ 5.Ke4 Re8+ 6.Kd5 Bb7+
>					7.Kc4 Ba6+ 8.Kd5
>
>jm



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