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Subject: Rybka Beta 12 and a endgame pawn opposition

Author: Eduard Nemeth

Date: 02:19:01 01/24/06

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)

Analysis by Rybka 1.01 Beta 12 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  2kN
1...Kxa6 2.Kg7 Kb5 3.Kf6
  ±  (1.01)   Tiefe: 7   00:00:00  3kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4
  ±  (1.05)   Tiefe: 8   00:00:00  12kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6
  ±  (1.05)   Tiefe: 9   00:00:00  12kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6 Kc5
  ±  (1.05)   Tiefe: 10   00:00:00  12kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6 Kc5 5.Kd7
  ±  (1.05)   Tiefe: 11   00:00:00  14kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6 Kc5 5.Kd7 Kb5
  ±  (1.05)   Tiefe: 12   00:00:00  21kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6 Kc5 5.Kd7 Kb5 6.Kd6
  ±  (1.05)   Tiefe: 13   00:00:00  30kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc5 4.Ke6 Kc6 5.Kf5 Kb5 6.Ke6 Kc6 7.Kf5 Kb5 8.Ke6
  ±  (1.05)   Tiefe: 14   00:00:00  49kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc5 4.Ke5 Kc6 5.Ke6 Kc5 6.Kd7 Kb5 7.Kd6 Kc4 8.Kc6
  ±  (1.05)   Tiefe: 15   00:00:01  78kN
1...Kxa6 2.Kg7 Ka7 3.Kf6 Kb6 4.Kf7 Kb7 5.Kf6 Kb6 6.Kf7 Kb7 7.Kf6 Kb6 8.Kf7
  ±  (1.05)   Tiefe: 16   00:00:01  148kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kg4 Kb5 6.Kf5 Kb6 7.Kf6 Kc5 8.Ke5
  ±  (1.01)   Tiefe: 17   00:00:03  829kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kg4 Kb5 6.Kf5 Kb6 7.Kf6 Kc5 8.Ke5
  ±  (1.05)   Tiefe: 18   00:00:03  919kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5 6.Kf5 Kb6 7.Kf6 Kc5 8.Ke5
  ±  (1.05)   Tiefe: 19   00:00:04  1023kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5 6.Kf5 Kc5 7.Ke5 Kc6 8.Ke6
  ±  (1.05)   Tiefe: 20   00:00:04  1111kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5
  ±  (1.17)   Tiefe: 21   00:00:16  6466kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5 6.Kf5 Kc5 7.Ke5 Kc6 8.Ke6
  ±  (1.17)   Tiefe: 22   00:00:17  6625kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5 6.Kf5 Kc5 7.Ke5 Kc6 8.Ke6
  ±  (1.21)   Tiefe: 23   00:01:02  22715kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5 6.Kf5 Kc5 7.Ke5 Kc6 8.Ke6
  ±  (1.23)   Tiefe: 24   00:01:37  35339kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Ka5 5.Kf4 Kb5 6.Kf5 Kb6 7.e4 dxe4 8.Kxe4
  ±  (1.23)   Tiefe: 25   00:01:40  36025kN

(Nemeth, Privat 24.01.2006)

Rybka see 2. Kg8 not (Kg7 is only a draw).

A Example with Toga II 1.1a:

Analysis by Toga II 1.1a:

1...Kxa6
  ²  (0.44)   Tiefe: 1/1   00:00:00
1...Kxa6 2.Kg7
  ±  (0.72)   Tiefe: 2/2   00:00:00
1...Kxa6 2.Kg7 Kb5
  ²  (0.56)   Tiefe: 3/3   00:00:00
1...Kxa6 2.Kg7 Kb5 3.Kf6
  ²  (0.60)   Tiefe: 4/5   00:00:00
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4
  ²  (0.68)   Tiefe: 5/5   00:00:00
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5
  ±  (0.72)   Tiefe: 6/8   00:00:00  1kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5
  ±  (0.92)   Tiefe: 7/9   00:00:00  1kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6 Kc5 5.Ke5
  ±  (0.72)   Tiefe: 8/10   00:00:00  2kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke6 Kc5 5.Ke5 Kc4
  ±  (0.92)   Tiefe: 9/11   00:00:00  3kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kc4 4.Ke5 Kc5 5.Ke6 Kc6 6.Ke5
  ±  (0.84)   Tiefe: 10/12   00:00:00  6kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kb6 4.Ke6 Kc6 5.Kf5 Kd6 6.e4 Kc5 7.exd5 Kxd5
  ±  (0.88)   Tiefe: 11/13   00:00:00  10kN
1...Kxa6 2.Kg7 Kb5 3.Kf6 Kb6 4.Kf5 Kc6 5.Kf4 Kc5 6.Ke5 Kc6 7.e4
  ±  (0.84)   Tiefe: 12/15   00:00:00  16kN
1...Kxa6 2.Kg7 Ka7 3.Kf6 Kb6 4.Kf7 Kb7 5.Ke7 Kc7 6.Ke6 Kc6 7.Ke5 Kc5
  ±  (0.92)   Tiefe: 13/17   00:00:01  32kN
1...Kxa6 2.Kg7 Ka7 3.Kf6 Kb6 4.Ke5 Kc5 5.Kf5 Kd6 6.Kf6 Kc5 7.Ke5 Kc6 8.e4
  ±  (0.84)   Tiefe: 14/17   00:00:01  49kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Kb5 5.Kf5 Kc5 6.Ke5 Kc6 7.Kd4 Kd6 8.e4 dxe4
9.Kxe4
  ±  (0.92)   Tiefe: 15/18   00:00:01  75kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kg5 Kb5 5.Kf5 Kc5 6.Ke5 Kc6 7.e4 dxe4 8.Kd4 e3
9.Kxe3
  ±  (0.92)   Tiefe: 16/20   00:00:01  101kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kf6 Kb6 5.Ke6 Kc6 6.Ke5 Kc5 7.Kf5 Kc4 8.Ke6 Kc5
9.Ke5 Kc4
  ±  (0.92)   Tiefe: 17/22   00:00:02  140kN
1...Kxa6 2.Kg7 Ka7 3.Kg6 Ka6 4.Kf6 Kb6 5.Ke6 Kc6 6.Ke5 Kc5 7.Kf5 Kc4 8.Ke6 Kc5
9.Ke7 Kc6 10.Ke6
  ±  (0.72)   Tiefe: 18/26   00:00:02  220kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc5 8.Ke5 Kc6
9.Kd4 Kd6 10.e4 dxe4 11.Kxe4
  ±  (0.92)   Tiefe: 19/27   00:00:02  333kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc5 8.Ke5 Kc6
9.e4 dxe4 10.Kd4 e3 11.Kxe3
  ±  (0.92)   Tiefe: 20/30   00:00:03  420kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc5 8.Ke5 Kc6
9.Ke6 Kc5 10.Kf5 Kb5 11.e4 Kc4 12.exd5 Kxd5
  ±  (0.88)   Tiefe: 21/30   00:00:03  543kN
1...Kxa6 2.Kg8 Kb6 3.Kg7 Kc7 4.Kg6 Kc6 5.Kg5 Kb7 6.Kf5 Kb6 7.Kf6 Kb7 8.Ke5 Kc6
9.Ke6 Kc5 10.Kf7 Kd6 11.Kf6 Kd7 12.Ke5
  ±  (0.84)   Tiefe: 22/33   00:00:04  860kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc7 8.Ke5 Kc6
9.Ke6 Kc5 10.Kd7 Kb5 11.Kd6 Kc4 12.Kc6 Kxc3 13.Kxd5
  ±  (1.04)   Tiefe: 23/34   00:00:05  1188kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc7 8.Ke5 Kc6
9.Ke6 Kc5 10.Kd7 Kb5 11.Kd6 Kc4 12.Kc6 Kxc3 13.Kxd5
  ±  (1.04)   Tiefe: 24/36   00:00:07  1753kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc7 8.Ke5 Kc6
9.Ke6 Kc5 10.Kd7 Kb5 11.Kd6 Kc4 12.Kc6 Kxc3 13.Kxd5 Kd3
  ±  (1.12)   Tiefe: 25/39   00:00:08  2286kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc7 8.Ke5 Kc6
9.Ke6 Kc5 10.Kd7 Kb5 11.Kd6 Kc4 12.Kc6 Kxc3 13.Kxd5 Kd3 14.e4
  ±  (1.14)   Tiefe: 26/43   00:00:15  4425kN
1...Kxa6 2.Kg8 Kb6 3.Kf8 Kc6 4.Ke8 Kd6 5.Kf7 Kd7 6.Kf6 Kd6 7.Kf5 Kc7 8.Ke5 Kc6
9.Ke6 Kc5 10.Kd7 Kb5 11.Kd6 Kc4 12.Kc6 Kxc3 13.Kxd5 Kb4 14.e4 Kb5
  +-  (1.48)   Tiefe: 27/44   00:00:21  6637kN

(Nemeth, Privat 24.01.2006)

Toga II 1.1a see the win with 2. Kg8 ---> all this without EGTB of course!

Re: Rybka Beta 12 and a endgame pawn opposition James T. Walker 12:42:31 01/24/06
Re: Rybka Beta 12 and a endgame pawn opposition James T. Walker 07:37:13 01/24/06
- Re: Rybka Beta 12 and a endgame pawn opposition Eduard Nemeth 09:09:37 01/24/06
  - Re: Rybka Beta 12 and a endgame pawn opposition James T. Walker 12:19:26 01/24/06
  - Re: Rybka Beta 12 and a endgame pawn opposition James T. Walker 12:13:02 01/24/06
  - Re: Rybka Beta 12 and a endgame pawn opposition Torstein Hall 11:23:38 01/24/06
  - Re: Rybka Beta 12 and a endgame pawn opposition Sebastian Leibnitz 10:56:40 01/24/06
    - Re: Rybka Beta 12 and a endgame pawn opposition Eduard Nemeth 01:38:58 01/25/06
      - Re: Rybka Beta 12 and a endgame pawn opposition Sebastian Leibnitz 03:55:33 01/25/06
  - Re: Genius 3 and this endgame pawn opposition Eduard Nemeth 09:19:16 01/24/06
    - Re: +3.75 for white of course! (NT) Eduard Nemeth 09:21:07 01/24/06
- Well said Jim!! NT Chris Taylor 07:50:46 01/24/06
Re: Rybka Beta 12 and a endgame pawn opposition Kurt Utzinger 03:35:52 01/24/06
- Re: Rybka Beta 12 and a endgame pawn opposition Uri Blass 05:34:52 01/24/06
  - Re: Rybka Beta 12 and a endgame pawn opposition Eduard Nemeth 05:45:37 01/24/06
- Re: Rybka Beta 12 and a endgame pawn opposition Eduard Nemeth 04:03:43 01/24/06
  - Re: Btw, only for Kurt (german) Eduard Nemeth 04:22:09 01/24/06
    - Re: Btw, only for Kurt (german) Rolf Tueschen 05:00:58 01/24/06
      - Re: Btw, only for Kurt (german) Eduard Nemeth 06:10:47 01/24/06
        
        The Last Will Rolf Tueschen 06:32:48 01/24/06
        
        Re: The Last Will Eduard Nemeth 01:52:46 01/25/06
Re: Rybka Beta 12 and a endgame pawn opposition Mark R. Anderson 03:30:42 01/24/06
- Re: Rybka Beta 12 and a endgame pawn opposition Albert Silver 03:35:07 01/24/06

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