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Subject: Re: Rybka Beta 12 and a endgame pawn opposition

Author: Eduard Nemeth

Date: 04:03:43 01/24/06

Go up one level in this thread


On January 24, 2006 at 06:35:52, Kurt Utzinger wrote:

>On January 24, 2006 at 05:19:01, Eduard Nemeth wrote:
>
>>Composition by Eduard Nemeth, CCC Forum 2006.01.24:
>>
>>:)
>>
>>[D]7K/8/P7/k2p4/8/2P1P3/8/8 b - - 0 1
>>
>>White wins after 1...Kxa6 2. Kg8! (only move)
>>
>
>      Hi Eduard
>      No problem for Rybka 1.0 Beta 32-bit
>      Best regards
>      Kurt
>
>Engine: Rybka 1.0 Beta 32-bit (32 MB)
>by Vasik Rajlich
>  7.00	 0:00 	-0.15 	19.e5 Nac6 20.Nh4 Rbd8 (31.488) 33
>best move: e4-e5 time: 0:01.758 min  n/s: 45.950  nodes: 73.728
>Position:  0 1
> 19.01	 0:01 	-1.21 	1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
>(1.052.197) 784
> 20.01	 0:03 	-1.46 	1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
>(2.453.120) 833
> 21.01	 0:05 	-1.52 	1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
>(3.927.063) 784
> 22.01	 0:11 	-1.81 	1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
>(9.240.683) 924
> 23.01	 0:14 	-1.84 	1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
>(12.514.297) 893
> 24.01	 0:57 	-2.02 	1...Kxa6 2.Kg8 Ka7 3.Kg7 Ka6 4.Kg6 Ka5 5.Kf7 Kb5 6.Ke7
>(19.094.486) 347
> 25.01	 1:29 	-1.84 	1...Kxa6 2.Kg8 Ka7 3.Kg7 Ka6 4.Kg6 Ka5 5.Kf7 Kb5 6.Ke7
>(25.306.056) 290
> 26.01	 2:54 	-2.02 	1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6
>(46.941.768) 276
> 27.01	 9:41 	-1.84 	1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6
>(85.076.331) 149
> 28.01	 9:44 	-2.02 	1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6
>(85.698.411) 150

Hello Kurt!

You are right, here an analysis with the _first_ Beta 1.0 on my slow PC:


7K/8/P7/k2p4/8/2P1P3/8/8 b - - 0 1

Analysis by Rybka 1.0 Beta 32-bit:

1...Kxa6
  ±  (0.76)   Tiefe: 3   00:00:00
1...Kxa6
  ±  (0.95)   Tiefe: 4   00:00:00
1...Kxa6 2.Kg7
  ±  (1.01)   Tiefe: 5   00:00:00
1...Kxa6 2.Kg7 Kb5
  ±  (0.95)   Tiefe: 6   00:00:00  1kN
1...Kxa6 2.Kg7 Kb5 3.Kf6
  ±  (0.99)   Tiefe: 7   00:00:00  2kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4
  ±  (1.05)   Tiefe: 8   00:00:00  3kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5
  ±  (1.05)   Tiefe: 9   00:00:00  5kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5
  ±  (1.05)   Tiefe: 10   00:00:00  8kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5 5.Ke6
  ±  (1.05)   Tiefe: 11   00:00:00  12kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5 5.Ke6 Kc6 6.Ke5
  ±  (1.05)   Tiefe: 12   00:00:00  18kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5 5.Kf5 Kd6 6.Kf6
  ±  (1.05)   Tiefe: 13   00:00:00  27kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5 5.Kf5 Kd6 6.Kf6
  ±  (1.05)   Tiefe: 14   00:00:01  39kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kb6 4.Kf5 Kb5 5.Ke6 Kc5 6.Kd7
  ±  (1.05)   Tiefe: 15   00:00:01  83kN
1...Kxa6 2.Kg7 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke6 Kc6 6.Ke5
  ±  (1.05)   Tiefe: 16   00:00:01  172kN
1...Kxa6 2.Kg7 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke5 Kc5 6.Ke6
  ±  (1.05)   Tiefe: 17   00:00:01  210kN
1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
  ±  (1.08)   Tiefe: 18   00:00:02  386kN
1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
  ±  (1.21)   Tiefe: 19   00:00:04  1052kN
1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
  +-  (1.46)   Tiefe: 20   00:00:07  2453kN
1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
  +-  (1.52)   Tiefe: 21   00:00:12  3927kN
1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
  +-  (1.81)   Tiefe: 22   00:00:24  9241kN
1...Kxa6 2.Kg8 Kb5 3.Kf7 Kb6 4.Kf6 Kb5 5.Ke7 Kc6 6.Ke6
  +-  (1.84)   Tiefe: 23   00:00:33  12514kN

(Nemeth, Privat 24.01.2006)

But real (belive me), Rybka 1.01 Beta 12 see the winning move 2. Kg8 not! :((

Is now Rybka 1.0 Beta better?

Regards,
ED.



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