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Subject: Re: This Endgame Problem was Posted in CTF, The Wrong Side:)

Author: Chris Welty

Date: 22:41:14 04/01/05

Go up one level in this thread


On April 01, 2005 at 18:26:24, Dieter Buerssner wrote:

>On April 01, 2005 at 16:29:27, Terry McCracken wrote:
>
>>8/8/3P3P/5r2/2P5/2P4k/8/6K1 w
>>
>>Now this poster says White to play wins, I say White to play draws.
>>He hasn't demonstrated the win, yet. I gave the following as the main drawing
>>line, which he says is wrong.
>>
>>1.d7..Rf8 2.c5..Kg3 3.c6..Ra8! 4.Kf1..Kf3!=
>
>Yace shows exactly your line and a 0.0 score after a while. However, in such
>positions, 0.0 can often be wrong. Note the the PVs end in kpppkr, a TB that has
>been created by Eugene Nalimov. Last time I looked, it was not available anymore
>on Bob Hyatt's ftp. The copy I had is also gone after a HD crash. With this TB
>the analysis should be much more reliable.
>
>Later c5 with positive score:
>
>
>8/8/3P3P/5r2/2P5/2P4k/8/6K1 w - -
>
>Engine: Yace aktuell (200 MB)
>von Dieter Buerssner
>
>10/23  0:01   +2.49    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf4
>                       5.c7 Tb1+ 6.Ke2 Tb2+ 7.Kd3 (255.994) 241
>
>11/23  0:01   +2.37    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf3
>                       5.Ke1 Ke4 6.c7 Tb1+ 7.Kd2 (408.899) 261
>
>11/25  0:01   +2.37    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf3
>                       5.Ke1 Ke4 6.c7 Tb1+ 7.Kd2 (438.501) 244
>
>12/25  0:02   +2.29    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf3
>                       5.Ke1 Ke4 6.c7 Tb1+ 7.Kf2 Tb2+ 8.Kg3 (709.414) 262
>
>12/26  0:03   +2.29    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf3
>                       5.Ke1 Ke4 6.c7 Tb1+ 7.Kf2 Tb2+ 8.Kg3 (780.945) 248
>
>13/26  0:04   +2.19    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Ke4 7.c7 Tb1+ 8.Kc2 (1.225.974) 278
>
>13/28  0:05   +2.19    1.d7 Tf8 2.c5 Kg3 3.c6 Tb8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Ke4 7.c7 Tb1+ 8.Kc2 (1.343.663) 243
>
>14/30  0:07   +2.18    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Ke4 7.c7 Ta1+ 8.Kc2 Ta2+
>                       9.Kb3 (2.121.550) 288
>
>14/30  0:08   +2.18    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Ke4 7.c7 Ta1+ 8.Kc2 Ta2+
>                       9.Kb3 (2.331.742) 266
>
>15/32  0:12   +2.40    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kc4 8.c7 Ta1+
>                       9.Kd2 (3.624.671) 300
>
>15/32  0:14   +2.40    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kc4 8.c7 Ta1+
>                       9.Kd2 (4.169.502) 278
>
>16/33  0:18   +2.80++  1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Ta2 8.d8D+ Kxc3 (6.074.087) 326
>
>16/33  0:21   +3.70    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Td8 (8.060.295) 383
>
>16/33  0:22   +3.70    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Td8 (8.698.473) 382
>
>17/33  0:23   +3.30--  1.d7 Tf8 2.c5 Kg3 3.h7 (8.832.324) 376
>
>17/33  0:26   +2.30--  1.d7 Tf8 2.c5 Kg3 3.d8S (9.649.193) 370
>
>17/35  0:38   +1.57    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd4
>                       9.c7 Ta1+ 10.Kd2 (14.270.515) 370
>
>17/35  0:47   +1.57    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd4
>                       9.c7 Ta1+ 10.Kd2 (17.040.416) 355
>
>18/36  0:57   +1.56    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd4
>                       9.c7 Ta1+ 10.Ke2 Ta2+ 11.Kf3 (21.758.187) 376
>
>18/36  1:16   +1.56    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd4
>                       9.c7 Ta1+ 10.Ke2 Ta2+ 11.Kf3 (29.227.889) 380
>
>19/36  1:32   +1.58    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke4 10.c7 Ta1+ 11.Ke2 (38.542.255) 418
>
>19/36  1:48   +1.58    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke4 10.c7 Ta1+ 11.Ke2 (45.575.321) 421
>
>20/39  2:08   +1.56    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke3 10.Kf1 Kf3 (57.702.695) 449
>
>20/39  2:50   +1.56    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke3 10.Kf1 Kf3 (76.643.185) 448
>
>21/40  3:27   +1.46    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke3 10.Kf1 Kd4 11.c7 Tf8+ (95.049.316) 458
>
>21/40  4:13   +1.46    1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke3 10.Kf1 Kd4 11.c7 Tf8+ (111.437.334) 439
>
>22/40  4:24   +1.06--  1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.d8D+ Txd8 8.c7 Tf8
>                       9.Ke1 (115.182.530) 435
>
>22/42  5:16   0.00     1.d7 Tf8 2.c5 Kg3 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ke3 6.Kd1 Kd3 7.Kc1 Kxc3 8.Kd1 Kd3
>                       9.Ke1 Ke3 10.Kd1 Kd3 11.Ke1 Ke3
>                       12.Kd1 Kd3 (144.140.428) 455
>
>22/48  15:02  +0.01++  1.c5 Txc5 2.d7 Td5 3.h7 Kg3 4.Kf1 Tf5+
>                       5.Ke2 Tf8 6.Ke3 Td8 7.c4 Tb8 8.h8D Tb3+
>                       9.Kd2 Kf4 (536.498.391) 594
>
>22/48  28:12  +1.84    1.c5 Kg3 2.h7 Tf8 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ta1+ 6.Kd2 Ke4 7.h8D Ta2+
>                       8.Kc1 Ta1+ 9.Kb2 Th1 (1.055.513.669) 623
>
>22/48  28:16  +1.84    1.c5 Kg3 2.h7 Tf8 3.c6 Ta8 4.Kf1 Kf3
>                       5.Ke1 Ta1+ 6.Kd2 Ke4 7.h8D Ta2+
>                       8.Kc1 Ta1+ 9.Kb2 Th1 (1.056.425.029) 622
>
>
>
>Regards,
>Dieter



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