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Subject: Re: a mate to solve

Author: Dann Corbit
Date: 16:39:55 10/09/01
On October 09, 2001 at 19:36:40, Slater Wold wrote:

>On October 09, 2001 at 13:01:13, Uri Blass wrote:
>
>>[D]8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 61
>
>
>WITH TABLEBASES:
>
>W,S - Goliath Light 1.5
>8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 1
>
>Analysis by Goliath Light 1.5:
>
>1...Rxb7 2.Rxg2 Ke4
>  -+  (-9.82)   Depth: 6/8   00:00:00
>1...Rxb7 2.Rxg2 Ke4
>  -+  (-11.46)   Depth: 6/9   00:00:00  8kN, tb=15
>1...Rxb7 2.Kd4 Rg7 3.Kd5
>  -+  (-12.17)   Depth: 6/9   00:00:00  10kN, tb=15
>1...Rxb7 2.Kd4 Rg7 3.Kd5
>  -+  (-12.17)   Depth: 7/9   00:00:00  12kN, tb=15
>1...Rxb7 2.Kd5 Rg7 3.Kd6 Kf4
>  -+  (-12.33)   Depth: 7/11   00:00:00  20kN, tb=51
>1...Rxb7 2.Kd5 Rg7 3.Kd6 Kf4
>  -+  (-12.33)   Depth: 8/11   00:00:00  26kN, tb=51
>1...Rxb7 2.Kd5 Rg7 3.Kd6 Kf4
>  -+  (-12.70)   Depth: 8/18   00:00:00  35kN, tb=80
>1...Rxb7 2.Kd5 Rg7 3.Kd6 Kf4
>  -+  (-13.52)   Depth: 8/18   00:00:00  42kN, tb=126
>1...Rxb7 2.Kc5 Rc3+ 3.Kd4 h3 4.Kxc3 h2 5.Re1
>  -+  (-16.42)   Depth: 8/18   00:00:00  77kN, tb=294
>1...Rxb7 2.Kc5 Rc3+ 3.Kd4 h3 4.Kxc3 h2 5.Re1
>  -+  (-16.42)   Depth: 9/18   00:00:00  105kN, tb=294
>1...Rxb7 2.Kc5 Rc3+ 3.Kd4 h3 4.Kxc3 h2 5.Re1
>  -+  (-17.06)   Depth: 9/19   00:00:00  141kN, tb=448
>1...Rxb7 2.Kc5 Rc3+ 3.Kd4 h3 4.Kxc3 h2 5.Re1
>  -+  (-17.86)   Depth: 9/19   00:00:00  153kN, tb=534
>1...Rxb7 2.Kc5 Rc7+ 3.Kd6 Rh1 4.Kd5 Rxg1 5.Kd6
>  -+  (-25.61)   Depth: 9/19   00:00:00  219kN, tb=1016
>1...Rc3+
>  -+  (-27.61)   Depth: 9/19   00:00:01  316kN, tb=1217
>1...Rc3+ 2.Kxc3 Rxb7 3.Rd1 g1Q 4.Rd8 Rb3+ 5.Kc4 Qc5+ 6.Kxc5
>  -+  (-#33)   Depth: 9/19   00:00:01  338kN, tb=1435
>1...Rc3+ 2.Kxc3 Rxb7 3.Rd1 g1Q 4.Rd8 Rb3+ 5.Kc4 Qc5+ 6.Kxc5
>  -+  (-#33)   Depth: 9/19   00:00:01  366kN, tb=1439

Notice that Goliath found a mate in 33, not a mate in ten.

>(W,  09.10.2001)
>
>
>W,S - Deep Fritz T29c
>8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 1
>
>Analysis by Deep Fritz T29c:
>
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3!
>  -+  (-9.47)   Depth: 6/14   00:00:00  9kN
>1...Rg3!
>  -+  (-9.78)   Depth: 7/16   00:00:00  21kN
>1...Rg3!
>  -+  (-10.09)   Depth: 8/16   00:00:00  54kN
>1...Rxb7!
>  -+  (-10.13)   Depth: 8/19   00:00:00  136kN, tb=9
>1...Rxb7! 2.Kd5 Rb2 3.Kd4 Rh1 4.Rxg2 Rxg2 5.Ke3
>  -+  (-11.50)   Depth: 8/19   00:00:00  162kN, tb=10
>1...Rxb7 2.Kd5 Rc7 3.Kd6
>  -+  (-11.75)   Depth: 9/19   00:00:00  239kN, tb=22
>1...Rxb7!
>  -+  (-12.06)   Depth: 10/21   00:00:01  559kN, tb=52
>1...Rxb7! 2.Kd5 Rg3 3.Kc6 h3 4.Ra1 h2 5.Ra5+ Kg4 6.Kxb7 h1Q
>  -+  (-12.28)   Depth: 10/22   00:00:01  819kN, tb=77
>1...Rxb7!
>  -+  (-12.59)   Depth: 11/21   00:00:01  1247kN, tb=127
>1...Rxb7! 2.Kd4 Rd7+
>  -+  (-#30)   Depth: 11/25   00:00:05  4452kN, tb=253
>
>(W,  09.10.2001)
>
>
>W,S - Deep Junior 7
>8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 1
>
>Analysis by Deep Junior 7:
>
>1...Rxb7 2.Rxg2 Rhb3
>  -+  (-4.73)   Depth: 3   00:00:00
>1...Rg3 2.b8Q Rxb8
>  -+  (-6.37)   Depth: 3   00:00:00
>1...Rg3 2.b8Q Rxb8
>  -+  (-6.37)   Depth: 3   00:00:00
>1...Rg3 2.b8Q Rxb8
>  -+  (-6.37)   Depth: 3   00:00:00
>1...Rg3 2.Kd5 Rd3+ 3.Kc4 Rdd2 4.b8Q Rxb8
>  -+  (-6.48)   Depth: 6   00:00:00  3kN
>1...Rg3!
>  -+  (-6.78)   Depth: 9   00:00:00  22kN
>1...Rxb7!
>  -+  (-6.98)   Depth: 9   00:00:00  33kN, tb=5
>1...Rxb7! 2.Kd5 Rd3+ 3.Kc4 Rdb3 4.Rd1 R7b4+ 5.Kd5 Rd3+ 6.Kc5
>  -+  (-7.18)   Depth: 9   00:00:00  75kN, tb=9
>1...Rxb7!
>  -+  (-7.48)   Depth: 12   00:00:00  117kN, tb=11
>1...Rxb7! 2.Kd5 Rd3+ 3.Kc6 h3 4.Ra1
>  -+  (-8.70)   Depth: 12   00:00:00  485kN, tb=48
>1...Rxb7!
>  -+  (-9.00)   Depth: 15   00:00:01  1846kN, tb=238
>1...Rxb7! 2.Rd1 g1R 3.Rxg1 Rc3+ 4.Kxc3
>  -+  (-#25)   Depth: 15   00:00:13  26296kN, tb=4066
>1...Rxb7! 2.Rd1 g1R 3.Rxg1 Rc3+ 4.Kxc3
>  -+  (-#25)   Depth: 15   00:00:15  29373kN, tb=4524
>
>(W,  09.10.2001)
>
>
>WITHOUT TABLEBASES:
>
>
>W,S - Goliath Light 1.5
>8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 1
>
>Analysis by Goliath Light 1.5:
>
>1...Rxb7 2.Rxg2 Ke4
>  -+  (-9.82)   Depth: 6/8   00:00:00
>1...Rxb7 2.Rxg2 Ke4 3.Kc5
>  -+  (-9.59)   Depth: 6/9   00:00:00  9kN
>1...Rg3
>  -+  (-10.63)   Depth: 6/11   00:00:00  13kN
>1...Rg3 2.Kd4 Rxb7 3.Kc4
>  -+  (-11.18)   Depth: 6/11   00:00:00  15kN
>1...Rg3 2.Kd4 Rxb7 3.Kc4
>  -+  (-11.98)   Depth: 7/11   00:00:00  18kN
>1...Rg3 2.Kd4 Rxb7 3.Kc4
>  -+  (-11.98)   Depth: 7/11   00:00:00  18kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rh7
>  -+  (-12.25)   Depth: 7/11   00:00:00  22kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rh7
>  -+  (-12.25)   Depth: 8/11   00:00:00  27kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rh7
>  -+  (-12.56)   Depth: 8/18   00:00:00  42kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rh7
>  -+  (-13.37)   Depth: 8/18   00:00:00  58kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rb1 4.Rxb1 h3
>  -+  (-14.76)   Depth: 8/20   00:00:00  86kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rb1 4.Rxb1 h3
>  -+  (-14.76)   Depth: 9/20   00:00:00  114kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rb1 4.Rxb1 h3
>  -+  (-15.07)   Depth: 9/20   00:00:00  153kN
>1...Rg3 2.Kc5 Rxb7 3.Kc6 Rb1 4.Rxb1 h3
>  -+  (-15.90)   Depth: 9/20   00:00:00  164kN
>1...Rg3
>  -+  (-15.90)   Depth: 9/20   00:00:00  188kN
>1...Rg3
>  -+  (-15.90)   Depth: 10/20   00:00:00  297kN
>1...Rg3
>  -+  (-16.20)   Depth: 10/27   00:00:00  505kN
>1...Rg3
>  -+  (-17.00)   Depth: 10/27   00:00:00  706kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8 4.Kd6 h2 5.Rxg2 Rxg2 6.Kc7 Rh8
>  -+  (-19.29)   Depth: 10/27   00:00:00  1346kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8 4.Kd6 h2 5.Rxg2 Rxg2 6.Kc7 Rh8
>  -+  (-19.29)   Depth: 11/27   00:00:00  1607kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8 4.Kd6 h2 5.Rxg2 Rxg2 6.Kc7 Rh8
>  -+  (-19.59)   Depth: 11/30   00:00:01  2659kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8
>  -+  (-19.55)   Depth: 11/30   00:00:01  3533kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8
>  -+  (-19.55)   Depth: 12/30   00:00:01  4800kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8
>  -+  (-19.85)   Depth: 12/30   00:00:03  7610kN
>1...Rg3 2.Kc5 h3 3.b8Q Rxb8
>  -+  (-20.65)   Depth: 12/30   00:00:03  8975kN
>1...Rg3 2.Ra1 h3 3.Ra5+ Kf4 4.Ra8 Rxb7 5.Rf8+ Ke4 6.Re8+ Kf3 7.Rf8+ Ke3
>  -+  (-22.97)   Depth: 12/30   00:00:14  32549kN
>1...Rg3 2.Ra1 h3 3.Ra5+ Kf4 4.Ra8 Rxb7 5.Rf8+ Ke4 6.Re8+ Kf3 7.Rf8+ Ke3
>  -+  (-22.97)   Depth: 13/30   00:00:14  33036kN
>1...Rg3 2.Ra1 h3 3.Ra5+ Kf4 4.Ra8 Rxb7 5.Rf8+ Ke4 6.Re8+ Kf3 7.Rf8+ Ke3
>  -+  (-23.27)   Depth: 13/30   00:00:20  48723kN
>1...Rg3 2.b8Q Rxb8
>  -+  (-23.23)   Depth: 13/30   00:00:22  54697kN
>1...Rg3 2.b8Q Rxb8
>  -+  (-23.23)   Depth: 14/30   00:00:23  57412kN
>1...Rg3 2.b8Q Rxb8
>  -+  (-23.53)   Depth: 14/34   00:00:34  85483kN
>1...Rg3 2.b8Q Rxb8
>  -+  (-24.33)   Depth: 14/34   00:00:46  114679kN
>1...Rg3 2.Kd5 h3 3.b8Q Rxb8 4.Re1 g1Q 5.Re5+ Kf4 6.Re4+ Kf3 7.Re5 h2 8.Ke6 Qb6+
>9.Kd5 Qb5+ 10.Kd6 Rd8+ 11.Kc7 Qd7+
>  -+  (-31.85)   Depth: 14/35   00:02:17  369053kN
>1...Rg3 2.Kd5 h3 3.b8Q Rxb8 4.Re1 g1Q 5.Re5+ Kf4 6.Re4+ Kf3 7.Re5 h2 8.Ke6 Qb6+
>9.Kd5 Qb5+ 10.Kd6 Rd8+ 11.Kc7 Qd7+
>  -+  (-31.85)   Depth: 15/35   00:02:21  381170kN
>
>(W,  09.10.2001)
>
>
>
>W,S - Deep Fritz T29c
>8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 1
>
>Analysis by Deep Fritz T29c:
>
>1...Rg3 2.Kd4 Rb4+ 3.Kd5 Rxb7
>  -+  (-8.81)   Depth: 3/8   00:00:00
>1...Rg3 2.b8Q Rxb8 3.Kc5
>  -+  (-9.00)   Depth: 4/11   00:00:00  1kN
>1...Rg3 2.b8Q Rxb8 3.Kc5
>  -+  (-9.00)   Depth: 4/11   00:00:00  1kN
>1...Rg3 2.b8Q Rxb8 3.Kc5
>  -+  (-9.00)   Depth: 4/11   00:00:00  1kN
>1...Rg3 2.b8Q Rxb8 3.Kc5
>  -+  (-9.00)   Depth: 4/11   00:00:00  1kN
>1...Rg3 2.b8Q Rxb8 3.Kc5
>  -+  (-9.00)   Depth: 4/11   00:00:00  1kN
>1...Rg3 2.b8Q Rxb8 3.Kc5
>  -+  (-9.00)   Depth: 4/11   00:00:00  1kN
>1...Rg3 2.b8Q Rxb8 3.Kd4 h3
>  -+  (-9.16)   Depth: 5/13   00:00:00  2kN
>1...Rg3!
>  -+  (-9.47)   Depth: 6/14   00:00:00  8kN
>1...Rg3!
>  -+  (-9.78)   Depth: 7/16   00:00:00  21kN
>1...Rg3!
>  -+  (-10.09)   Depth: 8/16   00:00:00  54kN
>1...Rg3!
>  -+  (-10.41)   Depth: 9/19   00:00:00  147kN
>1...Rg3! 2.Kd5 h3 3.Re1 Rxb7 4.Re5+ Kf4 5.Re1 g1Q 6.Rxg1 Rxg1
>  -+  (-11.81)   Depth: 9/23   00:00:00  379kN
>1...Rg3!
>  -+  (-12.13)   Depth: 10/21   00:00:00  665kN
>1...Rg3!
>  -+  (-12.44)   Depth: 11/23   00:00:00  1284kN
>1...Rg3! 2.Rxg2 Rgxg2 3.Kd5 h3 4.b8Q Rxb8 5.Kd6 h2
>  -+  (-14.53)   Depth: 11/28   00:00:02  4731kN
>1...Rg3!
>  -+  (-14.84)   Depth: 12/24   00:00:03  6140kN
>1...Rg3! 2.Rd1 h3 3.b8Q Rxb8 4.Rd5+ Ke6 5.Rh5 g1Q 6.Rh6+ Kf5 7.Rh5+
>  -+  (-16.44)   Depth: 12/27   00:00:06  10512kN
>1...Rg3!
>  -+  (-16.75)   Depth: 13/26   00:00:09  14666kN
>1...Rg3! 2.Re1 h3 3.b8Q Rxb8 4.Kd5 h2 5.Re5+ Kg4 6.Re4+ Kf3 7.Rc4
>  -+  (-17.28)   Depth: 13/31   00:00:17  27937kN
>1...Rg3!
>  -+  (-17.59)   Depth: 14/30   00:00:24  39826kN
>1...Rg3!
>  -+  (-17.91)   Depth: 15/31   00:00:43  69839kN
>
>(W,  09.10.2001)
>
>*AT 10 MINUTES, THE EVAL STILL HADN'T UPDATED*
>
>
>
>W,S - Deep Junior 7
>8/1P6/8/5k2/2K4p/7r/1r4p1/6R1 b - - 0 1
>
>Analysis by Deep Junior 7:
>
>1...Rxb7 2.Rxg2 Rhb3
>  -+  (-4.73)   Depth: 3   00:00:00
>1...Rg3 2.b8Q Rxb8
>  -+  (-6.37)   Depth: 3   00:00:00
>1...Rg3 2.b8Q Rxb8
>  -+  (-6.37)   Depth: 3   00:00:00
>1...Rg3 2.b8Q Rxb8
>  -+  (-6.37)   Depth: 3   00:00:00
>1...Rg3 2.Kd5 Rd3+ 3.Kc4 Rdd2 4.b8Q Rxb8
>  -+  (-6.48)   Depth: 6   00:00:00  3kN
>1...Rg3!
>  -+  (-6.78)   Depth: 9   00:00:00  22kN
>1...Rg3!
>  -+  (-7.08)   Depth: 12   00:00:00  93kN
>1...Rg3! 2.b8Q Rxb8 3.Rd1 g1Q 4.Rxg1 Rxg1
>  -+  (-8.82)   Depth: 12   00:00:01  1596kN
>1...Rg3!
>  -+  (-9.12)   Depth: 15   00:00:01  2617kN
>1...Rg3! 2.Ra1 Rxb7 3.Kc5 g1Q+ 4.Rxg1 Rxg1 5.Kc6 Rg6+ 6.Kxb7 h3 7.Ka8 h2 8.Ka7
>h1Q
>  -+  (-10.67)   Depth: 15   00:00:10  24840kN
>1...Rg3!
>  -+  (-10.97)   Depth: 18   00:00:15  35839kN
>1...Rg3! 2.Ra1 Rxb7 3.Re1 g1Q 4.Rxg1 Rxg1 5.Kd3 Rd7+ 6.Kc2 Rg2+ 7.Kb3 h3 8.Kc4
>h2 9.Kc3 h1Q
>  -+  (-14.15)   Depth: 18   00:01:52  303031kN
>
>(W,  09.10.2001)
>
>
>
>A *lot* more time without the TB's.

None of these searches found a mate in ten.  So far, chest is the only tool that
found it (IIRC).
Re: a mate to solve K. Burcham 16:53:02 10/09/01
- Re: a mate to solve Dann Corbit 17:01:04 10/09/01
  - Re: a mate to solve Slater Wold 17:03:00 10/09/01
- Re: a mate to solve Slater Wold 17:00:29 10/09/01
  - Re: a mate to solve Dann Corbit 17:05:24 10/09/01
Re: a mate to solve Slater Wold 16:52:47 10/09/01
- Re: a mate to solve Uri Blass 17:09:51 10/09/01
  - Re: a mate to solve Slater Wold 18:26:54 10/09/01
    - Re: a mate to solve Uri Blass 19:12:02 10/09/01
      - Re: a mate to solve Slater Wold 19:18:36 10/09/01
    - Re: a mate to solve Dann Corbit 18:51:01 10/09/01
      - Re: a mate to solve Dave Gomboc 00:35:34 10/10/01
      - Re: a mate to solve Uri Blass 19:18:09 10/09/01
- Re: a mate to solve Dann Corbit 16:57:20 10/09/01
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