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Subject: Re: Mate in 20 Moves

Author: Dann Corbit

Date: 18:21:34 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?

SlowChess WV2 takes 35 seconds:

Analysis from E:\M20.EPD
1/26/2006 6:09:02 PM Level: Infinite
Analyzing engine: SlowWV2

1)
    Avoid move:
    Best move (SlowWV2): Na6-b8
    Not found in: 02:00
      2	00:00	          58	0	-3.53	g5g4 Ka7xa6
      3	00:00	         733	0	-14.00	g5g4 Ka7xa6 Kd8e7 b7b8Q
      3	00:00	         754	0	-4.16	Na6b8 Ka7xb8 Bd6e5
      4	00:00	       1.096	0	-4.66	Na6b8 Ka7xb8 Bd6e5 a5a6 Be5f6
      5	00:00	       2.145	0	-4.56	Na6b8 Ka7xb8 g5g4 f3xg4 f4f3 a5a6 f3f2 Kb8a7
      6	00:00	       4.951	0	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5b4 Kb8a7 Bb4c5+
Ka7b8
      7	00:00	       6.725	672.500	-0.28	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 f3xg4 f4f3
g4g5 f3f2 a6a7 f2f1Q
      8	00:00	      11.065	1.106.500	 0.00	Na6b8 Ka7xb8 Bd6c5 a5a6 Bc5b4 a6a7
Bb4a3
      9	00:00	      16.246	1.624.600	+1.44	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 f3xg4
f4f3 g4g5 f3f2 a6a7 Bc5f8 g5g6 f2f1Q g6g7 Bf8xg7
     10	00:00	      27.591	919.700	+2.36	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 f3xg4 f4f3
g4g5 f3f2 g5g6 f2f1Q g6g7 Qf1g1 g7g8N Qg1xg8
     11	00:00	      52.806	1.320.150	+1.64	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d6 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Qf1f7 g7g8Q+ Qf7xg8
     12	00:00	      77.784	1.296.400	+1.31	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1g1+ Ka7b8 Qg1xg7
Kb8a7 Qg7d4+ Ka7b8
     13	00:00	     104.126	1.156.955	+1.31	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1g1+ Ka7b8 Qg1xg7
Kb8a7 Qg7d4+ Ka7b8 Qd4e4
     14	00:00	     145.477	1.212.308	+3.91	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1e5 Kb8a7 Qe5c5+ Ka7b8 Qc5xc6
     15	00:00	     202.234	1.348.226	+3.91	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1e5 Kb8a7 Qe5c5+ Ka7b8 Qc5xc6
     16	00:00	     301.032	1.308.834	+5.72	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8
     17	00:00	     468.416	1.377.694	+5.72	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
     18	00:00	     766.397	1.419.253	+5.92	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
Kb8a7 c7c5
     19	00:01	   1.362.647	1.465.211	+5.93	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
Kb8a7 Qd7d4+ Ka7b8 c7c5
     20	00:02	   2.574.058	1.470.890	+5.93	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
Kb8a7 Qd7d4+ Ka7b8 c7c5
     21	00:03	   5.031.881	1.467.020	+5.93	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
Kb8a7 Qd7a4+ Ka7b8 Qa4e4 Kb8a7 Qe4e3+ Ka7b8 c7c5
     22	00:07	  10.124.168	1.480.141	+6.56	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
Kb8a7 Qd7d4+ Ka7b8 c7c5 Kb8a7 c5c4+ Ka7b8 c4c3
     23	00:35	  59.721.397	1.708.766	+M20	Na6b8 Ka7xb8 Bd6c5 a5a6 g5g4 a6a7
Bc5d4 f3xg4 f4f3 g4g5 f3f2 g5g6 f2f1Q g6g7 Bd4xa7+ Kb8xa7 Qf1a1+ Ka7b8 Qa1xg7
Kb8a7 Qg7a1+ Ka7b8 Qa1b1 Kb8a7 Qb1b6+ Ka7b8 Qb6xc6 Kb8a7 Qc6a4+ Ka7b8 Qa4xd7
Kb8a7 Qd7d4+ Ka7b8 Kd8e7 Kb8xc7 Qd4d6+ Kc7c8 Qd6d8+
   1/26/2006 6:18:04 PM, Time for this analysis: 00:02:00, Rated time: 02:00

0 of 1 matching moves
1/26/2006 6:18:04 PM, Total time: 12:09:02 AM
Rated time: 02:00 = 120 Seconds



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