Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mate in 20 Moves

Author: Dann Corbit

Date: 19:05:51 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?

For me (full compliment of 3/4/5-man EGTB files) Rybka sees the mate and then
hits the wall (announces mate in 200 after 1 minute and then analyzes for 9 more
minutes without a peep).  I guess the probe default setting is too high.

Analysis from E:\M20.EPD
1/26/2006 6:33:17 PM Level: Infinite
Analyzing engine: Rybka v1.01 Beta 13.w32

1)
    Avoid move:
    Best move (Rybka v1.01 Beta 13.w32): Na6-b8
    Not found in: 10:00
      3	00:01	      20.264	0	-3.27	Na6b8
      4	00:01	      20.424	0	-3.81	Na6b8
      5	00:01	      20.664	0	 0.00	Na6b8 Ka7xb8
      6	00:01	      20.760	0	 0.00	Na6b8 Ka7xb8 Bd6c5
      7	00:01	      20.936	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6
      8	00:01	      21.168	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4
      9	00:01	      22.552	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     10	00:01	      24.064	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     11	00:01	      25.960	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     12	00:01	      28.272	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     13	00:01	       5.295	11.916	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     14	00:01	       7.710	16.244	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     15	00:01	      10.973	21.733	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     16	00:01	      15.381	29.549	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     17	00:01	      21.954	34.165	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     18	00:01	      30.057	45.733	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     19	00:01	      46.055	62.796	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     20	00:01	      66.878	84.131	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     21	00:02	      95.907	102.836	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7
Bd4f6
     22	00:02	     144.813	124.716	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7
Bd4f6
     23	00:02	     219.395	140.852	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7
Bd4f6
     24	00:03	     330.585	144.357	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7
Bd4f6
     25	00:04	     494.437	143.306	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7
Bd4f6
     26	00:09	     863.020	103.384	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7
Bd4f6
     27	00:17	   1.460.843	88.394	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 Bd4f6
     28	00:59	   2.952.618	51.862	+M200	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5d4 a6a7 g5g4
f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7
   1/26/2006 6:54:10 PM, Time for this analysis: 00:10:00, Rated time: 10:00

0 of 1 matching moves
1/26/2006 6:54:10 PM, Total time: 12:20:53 AM
Rated time: 10:00 = 600 Seconds



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.