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Subject: Re: do all programs see this draw here....

Author: Russell Reagan

Date: 06:09:57 12/27/03

On December 27, 2003 at 01:08:07, Slater Wold wrote:

>On December 27, 2003 at 00:51:11, Mike Byrne wrote:
>
>>
>>[d]8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1
>
>P4 2.0Ghz(m):
>
>New game
>8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1
>
>Analysis by Deep Fritz 8:
>
>1...Ra1+!
>  ±  (1.35)   Depth: 7/14   00:00:00  19kN
>1...Ra1+!
>  ±  (1.07)   Depth: 7/14   00:00:00  20kN
>1...Ra1+!
>  ²  (0.50)   Depth: 7/15   00:00:00  21kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2
>  =  (0.00)   Depth: 7/15   00:00:00  23kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2
>  =  (0.00)   Depth: 8/11   00:00:00  27kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2
>  =  (0.00)   Depth: 9/15   00:00:00  40kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5
>  =  (0.00)   Depth: 10/16   00:00:00  63kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5
>  =  (0.00)   Depth: 11/17   00:00:00  155kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2
>  =  (0.00)   Depth: 12/18   00:00:00  292kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2
>  =  (0.00)   Depth: 13/19   00:00:00  538kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6
>  =  (0.00)   Depth: 14/21   00:00:01  970kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6
>  =  (0.00)   Depth: 15/21   00:00:02  2101kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>  =  (0.00)   Depth: 16/23   00:00:04  3913kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>  =  (0.00)   Depth: 17/25   00:00:09  7612kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>  =  (0.00)   Depth: 18/26   00:00:16  14406kN
>1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.gxh3 Kh4 5.Bg2 Kh5 6.Kf2 Kh6 7.Kf1
>  =  (0.00)   Depth: 19/29   00:00:33  29512kN
>
>(,  27.12.2003)

Maybe Deep Fritz 8 is improved after all :)

Athlon 2400+ (2GHz)

Fritz 8
8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1

Analysis by Fritz 8:

1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1
  =  (0.12)   Depth: 7/14   00:00:00  14kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2
  =  (0.12)   Depth: 8/13   00:00:00  24kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3
  =  (0.19)   Depth: 9/16   00:00:00  44kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3
  =  (0.19)   Depth: 10/15   00:00:00  77kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf3
  =  (0.12)   Depth: 11/17   00:00:00  244kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Bg2 7.Bb3 Bd5 8.Bxd5
  =  (0.12)   Depth: 12/21   00:00:00  465kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Be2 7.Bb3 Bc4 8.Bxc4
Kh6 9.h4 Kg7
  =  (0.12)   Depth: 13/21   00:00:01  1067kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Be2 7.Ba4 Bb5 8.Bc2
Bd3
  =  (0.12)   Depth: 14/23   00:00:02  2054kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Bd1 Kh4
  =  (0.09)   Depth: 15/24   00:00:05  4100kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Bd1 Bf3
  =  (0.06)   Depth: 16/25   00:00:10  7940kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf1
  =  (0.06)   Depth: 17/27   00:00:21  17182kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Bf1
  =  (0.00)   Depth: 18/28   00:00:37  30919kN

However! Using selectivity = 3, Fritz 8 finds it in 1 second. What are the
engine parameters for Deep Fritz 8? The parameters for Fritz 8 (default) are:

Contempt value    15
Selectivity        2
Tablebase depth    3
Futility pruning   check
Aggressiveness     2
Everything else    0

Fritz 8
8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1

Analysis by Fritz 8:

1...Ra1+--
  ²  (0.50)   Depth: 7/15   00:00:00  9kN
1...Ra1+ 2.Rf1 Ra7 3.h3 Rd7 4.Kf2 Bd3 5.Rd1
  ±  (0.72)   Depth: 7/17   00:00:00  21kN
1...Ra3!
  ²  (0.69)   Depth: 7/17   00:00:00  27kN
1...Ra3 2.Rd2 Ra1+ 3.Kf2 Kh4
  ²  (0.66)   Depth: 7/17   00:00:00  33kN
1...Ra3--
  ±  (0.94)   Depth: 8/18   00:00:00  74kN
1...Ra3 2.Rd2 Ra1+ 3.Kf2
  ±  (0.94)   Depth: 8/18   00:00:00  78kN
1...Ra1+!
  ±  (0.91)   Depth: 8/18   00:00:00  82kN
1...Ra1+!
  ±  (0.75)   Depth: 8/18   00:00:00  93kN
1...Ra1+!
  ²  (0.44)   Depth: 8/18   00:00:00  94kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2
  =  (0.12)   Depth: 8/18   00:00:00  98kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3
  =  (0.19)   Depth: 9/16   00:00:00  109kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Kf2 Bxg2 5.Be2 Be4 6.Ke3 Bd5 7.Bd3
  =  (0.19)   Depth: 10/15   00:00:00  126kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf1 6.Bd1 Bg2 7.Bb3 Be4 8.Ke3
  =  (0.12)   Depth: 11/17   00:00:00  191kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Kf2 Bf3 6.Bd3 Be4 7.Bc4 Bd3 8.Bxd3
  =  (0.09)   Depth: 12/20   00:00:00  324kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Ke1 Kh4 6.Kf2 Bd5 7.Ke3 Kh3 8.Bf1+
Kxh2 9.Bd3 Kg3
  =  (0.06)   Depth: 13/22   00:00:01  678kN
1...Ra1+ 2.Rf1 Rxf1+ 3.Kxf1 Bh3 4.Be2 Bxg2+ 5.Ke1 Kh4 6.Kf2 Kh3 7.Ke3 Bf1 8.Bh5
Bg2 9.Bg6 Be4
  =  (0.00)   Depth: 14/24   00:00:01  1260kN

Re: do all programs see this draw here.... Slater Wold 11:11:55 12/27/03
- Re: Today Fritz 8 finds 3...Bh3 =(0.00) but yesterday only =(0.12) ??? Brian Katz 17:18:42 12/28/03
  - Re: Pardon my ignorance...I accidently had the Tablebases on. Brian Katz 18:17:02 12/28/03

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