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Subject: Re: A simple pawn endgame

Author: chandler yergin

Date: 16:43:07 10/09/05

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On October 09, 2005 at 19:11:01, Dieter Buerssner wrote:

>On October 09, 2005 at 19:03:39, Peter Berger wrote:
>
>>Chandler and me disagreed on evaluation of his position. We needed only three
>>moves in a testgame to agree with each other though.
>>
>>1. a5 Ka6 2. Kg2 f4 3. Kf3 1-0
>
>I will have some pacience here, after your message about dropping to zero.
>Current analysis is (HTs cleared):
>
>
>8/1k4p1/8/5p1p/PPP5/6K1/8/8 w - -
>
>Engine: Yace via ssh (700 MB)
>von Dieter Buerssner
>
>812/33  0:10   -0.45    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 h3 8.Kh2 f3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kxb4
>                       13.a6 (15.062.054) 1450
>
>13/35  0:14   +0.01++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 h3 8.Kh2 f3
>                       9.Kg3 h2 10.Kxh2 Kxb4 11.a6 Kb5
>                       12.a7 Kc4 13.a8D f2 14.c6 (21.621.928) 1460
>
>13/35  0:17   +1.01++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 Ka4 10.a6 h2 11.Kxh2 Kb5 12.a7 Kc4
>                       13.a8D f2 (24.792.174) 1454
>
>13/35  0:18   +1.12    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 Ka6 10.c6 Ka7 11.b5 Ka8 12.a6 h2
>                       13.Kxh2 f2 14.Kg2 (26.675.714) 1457
>
>13/35  0:19   +1.12    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 Ka6 10.c6 Ka7 11.b5 Ka8 12.a6 h2
>                       13.Kxh2 f2 14.Kg2 (28.124.000) 1461
>
>14/38  0:22   +1.52++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 Ka6 10.c6 Ka7 11.b5 Kb8 12.a6 h2
>                       13.Kxh2 g3+ 14.Kxg3 (32.553.705) 1459
>
>14/38  0:24   +1.68    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Ka6
>                       13.c6 Ka7 14.b5 (35.985.136) 1462
>
>14/38  0:26   +1.68    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Ka6
>                       13.c6 Ka7 14.b5 (38.224.049) 1466
>
>15/38  0:31   +2.08++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 Kxb4
>                       12.c6 g3 13.c7 h1T 14.c8D (45.193.149) 1457 TB:2
>
>15/39  0:34   +2.46    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Ka6
>                       13.c6 Ka7 14.Kg2 (50.630.691) 1456 TB:2
>
>15/39  0:36   +2.46    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Ka6
>                       13.c6 Ka7 14.Kg2 (53.868.551) 1460 TB:2
>
>16/43  0:45   +2.86++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 Kc4 12.c6 g3
>                       13.a6 Kb5 14.a7 (65.300.778) 1450 TB:2
>
>16/43  0:51   +3.86++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 Kc4 12.c6 g3
>                       13.a6 Kb5 14.a7 (75.170.396) 1449 TB:2
>
>16/43  0:56   +3.95    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 Kc7 14.Kg2 (81.779.778) 1454 TB:2
>
>16/43  0:59   +3.95    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 Kc7 14.Kg2 (87.014.363) 1458 TB:2
>
>17/43  1:12   +4.35++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 g2+ 14.Kxg2 (104.892.912) 1453 TB:2
>
>17/43  1:21   +5.35++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 g2+ 14.Kxg2 (118.801.639) 1455 TB:2
>
>17/43  1:33   +6.16    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 Kc7 14.b5 (135.935.762) 1453 TB:3
>
>17/43  1:38   +6.16    1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 Kc7 14.b5 (144.145.563) 1458 TB:4
>
>18/45  2:04   +6.56++  1.a5 Ka6 2.Kg2 f4 3.Kf3 g5 4.c5 Kb5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 f2 10.Kxf2 h2 11.Kg2 g3 12.Kh1 Kc6
>                       13.a6 Kc7 14.b5 (179.153.276) 1443 TB:4
>
>18/45  2:38   +7.56++  1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 h4
>                       5.Kxf4 h3 6.Kf3 h2 7.Kg2 Kc6 8.a6 Kc7
>                       9.b5 Kd7 10.a7 Ke6 11.a8D Kf6 (227.201.002) 1437 TB:4
>
>18/47  3:21   +8.46    1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 Kc6 8.a6 h3
>                       9.Kh2 f3 10.Kg3 h2 11.Kxh2 f2 12.Kg2 g3
>                       13.Kf1 Kb5 14.a7 (287.956.299) 1426 TB:4
>
>18/47  3:32   +8.46    1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 Kc6 8.a6 h3
>                       9.Kh2 f3 10.Kg3 h2 11.Kxh2 f2 12.Kg2 g3
>                       13.Kf1 Kb5 14.a7 (303.841.653) 1431 TB:4
>
>19/48  4:32   +8.86++  1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 Kc6 8.a6 h3
>                       9.Kh2 f3 10.Kg3 h2 11.Kxh2 f2 12.Kg2 Kd7
>                       13.a7 g3 14.b5 (384.397.236) 1408 TB:68
>
>19/48  5:28   +9.86++  1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 Kc6 8.a6 h3
>                       9.Kh2 f3 10.Kg3 h2 11.Kxh2 f2 12.Kg2 Kd7
>                       13.a7 g3 14.b5 (459.552.578) 1399 TB:68
>
>19/48  6:28   +10.00   1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 h2 10.Kxh2 Kc4 11.a6 Kd3 12.a7 f2
>                       13.a8D f1S+ 14.Kg1 (543.301.158) 1400 TB:68
>
>19/48  6:47   +10.00   1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 h2 10.Kxh2 Kc4 11.a6 Kd3 12.a7 f2
>                       13.a8D f1S+ 14.Kg1 (572.858.811) 1405 TB:68
>
>20/49  8:53   +10.00   1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 h2 10.Kxh2 Kc4 11.a6 Kd3 12.a7 f2
>                       13.a8D f1S+ 14.Kg1 (743.554.229) 1393 TB:68
>
>20/49  9:30   +10.00   1.a5 Ka6 2.Kg2 f4 3.c5 Kb5 4.Kf3 g5
>                       5.Kf2 g4 6.Kg2 h4 7.Kg1 f3 8.Kf2 h3
>                       9.Kg3 h2 10.Kxh2 Kc4 11.a6 Kd3 12.a7 f2
>                       13.a8D f1S+ 14.Kg1 (800.495.391) 1402 TB:68
>
>I did not look at 3. Kf3. Above score looks rather convincing. I had set up TB
>usage to "very low". However, I think, that it should not make a huge difference
>to the default setting, besides just slowing down things a bit.
>
>Cheers,
>Dieter
  Very Impressive Engine!



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