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Subject: Re: Mate in 20 Moves

Author: Dann Corbit

Date: 18:22:40 01/26/06

Go up one level in this thread


On January 26, 2006 at 10:21:17, Eduard Nemeth wrote:

>Matt in 20 moves, composition by Eduard Nemeth 2002:
>
>[D]B2k4/KPpP4/n1Pb4/P5p1/5p2/5P2/8/8 b - - 0 1
>
>Analysis by Rybka 1.01 Beta 13 32-bit:
>
>1...Sb8 2.Kxb8 Lc5 3.a6 Ld4 4.a7 Lf6
>  =  (0.00)   Tiefe: 27   00:01:01  1464kN
>1...Sb8 2.Kxb8 Lc5 3.a6 Ld4 4.a7 g4 5.fxg4 f3 6.g5 f2 7.g6 f1D 8.g7
>  -+  (-319.61)   Tiefe: 28   00:02:49  2968kN
>
>(Nemeth, Privat 26.01.2006)
>
>Rybka 1.01 Beta 13 finds it on my slow PC after 2:49.
>
>Which says other programs?

SmarThink says a mate in 19.  The score goes wacky in the middle of analysis.

Analysis from E:\M20.EPD
1/26/2006 6:09:02 PM Level: Infinite
Analyzing engine: Smarthink-017a

1)
    Avoid move:
    Best move (Smarthink-017a): Na6-b8
    Not found in: 02:00
      9	00:39	      12.905	328	-0.13	a6b8 a7b8 d6c5
      9	00:39	      14.226	362	 0.00	a6b8 a7b8 d6c5 a5a6 c5f2 a6a7 f2d4
     10	00:39	      19.952	508	 0.00	a6b8 a7b8 d6c5 a5a6 c5f2 a6a7 f2d4
     10	00:39	      19.952	508	 0.00	a6b8 a7b8 d6c5 a5a6 c5f2 a6a7 f2d4
     11	00:39	      31.813	810	 0.00	a6b8 a7b8 d6c5 a5a6 c5f2 a6a7 f2d4
     11	00:39	      31.813	810	 0.00	a6b8 a7b8 d6c5 a5a6 c5f2 a6a7 f2d4
     12	00:39	      53.162	1.354	+0.01	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     12	00:39	      82.186	2.093	+5.44	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     13	00:39	     105.207	2.680	+5.44	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     13	00:39	     105.207	2.680	+5.44	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     14	00:39	     122.486	3.100	+5.45	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     14	00:44	   2.248.159	50.805	+M19	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     15	00:44	   2.895.422	64.702	+M20	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     15	00:45	   3.896.473	85.168	+M27	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     16	00:47	   6.174.953	129.999	+M27	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     16	00:53	  12.324.957	232.546	+319.00	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4
f3g4 f4f3
     17	00:55	  13.441.985	244.399	+M466	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     17	01:51	  50.480.277	454.777	+M19	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     18	01:51	  51.279.453	461.977	+M19	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     18	01:51	  51.279.453	461.977	+M19	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     19	01:54	  54.052.587	474.145	+M19	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
     19	01:54	  54.052.587	474.145	+M19	a6b8 a7b8 d6c5 a5a6 c5e3 a6a7 g5g4 f3g4
f4f3
   1/26/2006 6:20:12 PM, Time for this analysis: 00:02:00, Rated time: 02:00

0 of 1 matching moves
1/26/2006 6:20:13 PM, Total time: 12:11:11 AM
Rated time: 02:00 = 120 Seconds



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