Author: Dann Corbit
Date: 14:04:38 08/30/01
Go up one level in this thread
On August 30, 2001 at 16:53:28, Mogens Larsen wrote:
>On August 30, 2001 at 16:20:55, Dann Corbit wrote:
>
>>On August 30, 2001 at 13:31:57, Mogens Larsen wrote:
>>
>>>The culprit is:
>>>
>>>[D]2r1kb2/1b3p2/p2pp3/2q3BQ/1p2PP2/1P4N1/1PPR4/1K6 w - -
>>>
>>>I don't know if there's any solution as such. Just that a program found f5 to be
>>>very attractive after more than 40 minutes of thinking. So if your computer is
>>>idle...
>>
>>Phalanx was stymied.
>
>I'm not surprised and I'm not even certain that 27.f5 (see game below) is the
>best move. But thought it interesting to see if someone would agree or disagree.
>Gandalf preferred Qd1 for a long time as well. Maybe a future Nolot position
>:-).
>
>[Event "Correspondance game (1 hour/move)"]
>[Site "TAFDtA"]
>[Date "2001.05.20"]
>[Round "3"]
>[White "Gandalf 5.0 Beta-1"]
>[Black "Comet B.33"]
>[ECO "B81"]
>[Result "1-0"]
>
>1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4
>h6 7. h4 Nc6 8. Rg1 h5 9. gxh5 Nxh5 10. Bg5 Nf6 11. Be2 a6
>12. Qd2 Qb6 13. Nb3 Qc7 14. h5 Nxh5 15. Rh1 g6 16. Bxh5
>gxh5 17. Qe2 b5 18. Rxh5 Rxh5 19. Qxh5 Bb7 20. O-O-O b4
>21. Ne2 Rc8 22. Rd2 Na5 23. Ng3 Nxb3+ 24. axb3 Qa5 25. Kb1
>Qe5 26. f4 Qc5 27. f5 Qg1+ 28. Rd1 Qxg3 29. fxe6 Qf2
>30. Bh4 Qxc2+ 31. Ka2 Rc7 32. Qg5 Re7 33. Rc1 Qxe4 34. Rc7
>Qxe6 35. Rxb7 f5 36. Qh5+ Rf7 37. Rb8+ Kd7 38. Qg5 Qd5
>39. Qd8+ Ke6 40. Qc8+ Ke5 41. Qxa6 Kf4 42. Rxb4+ Ke3
>43. Bd8 Qd3 44. Bb6+ Ke2 45. Qa8 Qf3 46. Qc8 1-0
>
Yace seems to wobble back and forth between f5 and Qd1.
What was the evaluation at the time f5 was selected?
Yace output:
white ( 1): go
usetime = 143997.98, mintime = 71998.99 maxtime = 143997.98 tl 143997.98 ml 1
20 0.041 -6.38 1t 1.Rxd6 Qxc2+ 2.Ka2 Bxd6 {-510}
37 0.044 -0.14 1t 1.f5 {-10}
72 0.050 -0.14 1. 1.f5 {-10}
156 0.057 -2.03 2-- 1.f5 Qg1+ 2.Rd1 Qxg3 {-350}
246 0.067 -2.50 2t 1.f5 Qg1+ 2.Rd1 Qxg3 3.fxe6 {-270}
548 0.070 -1.76 2t+ 1.Ne2 Qc6 {-10}
591 0.075 -1.59 2t 1.Ne2 Bxe4 {-90}
655 0.082 -1.56 2t+ 1.Qg4 Qg1+ 2.Rd1 Bxe4 {-90}
727 0.088 -0.54 2t 1.Qg4 Bg7 {-10}
997 0.097 -0.49 2t+ 1.Qd1 f5 {-10}
1069 0.100 -0.45 2t 1.Qd1 Be7 {-10}
1120 0.107 -0.45 2. 1.Qd1 Be7 {-10}
1516 0.114 -0.45 3t 1.Qd1 Be7 2.Bxe7 {340}
1952 0.120 -0.43 3t+ 1.Qg4 Bg7 2.f5 {-10}
2036 0.127 -0.43 3t 1.Qg4 Bg7 2.f5 {-10}
3000 0.135 -0.42 3t+ 1.Rg2 Bg7 2.f5 {-10}
3073 0.138 -0.42 3t 1.Rg2 Bg7 2.f5 {-10}
3605 0.146 -0.42 3. 1.Rg2 Bg7 2.f5 {-10}
5836 0.157 -0.55 4t 1.Rg2 Qd4 2.Qf3 Bg7 {-10}
7691 0.166 -0.54 4t+ 1.Qd1 Qxg5 2.fxg5 Bxe4 {561}
9409 0.173 -0.45 4t 1.Qd1 Be7 2.Bxe7 Kxe7 {-10}
15214 0.191 -0.45 4. 1.Qd1 Be7 2.Bxe7 Kxe7 {-10}
20813 0.209 -0.47 5t 1.Qd1 Be7 2.Bxe7 Kxe7 3.Qg4 f6 {-10}
40688 0.270 -0.46 5t+ 1.Qf3 Bg7 2.Nh5 Ba8
45836 0.287 -0.43 5t 1.Qf3 Be7 2.Bxe7 Kxe7 3.Qd3 f6 {-10}
52543 0.312 -0.43 5. 1.Qf3 Be7 2.Bxe7 Kxe7 3.Qd3 f6 {-10}
97960 0.441 -0.49 6t 1.Qf3 Bg7 2.Qd1 d5 3.Nh5 Bh8 {-10}
112884 0.477 -0.48 6t+ 1.Qd1 Bg7 2.Rxd6 Qxd6 3.Qxd6 f6 {571}
157722 0.616 -0.45 6t 1.Qd1 a5 2.e5 d5 3.Bf6 Rc7 {-10}
248719 0.853 -0.45 6. 1.Qd1 a5 2.e5 d5 3.Bf6 Rc7 {-10}
375811 1.200 -0.35 7t 1.Qd1 Be7 2.Bxe7 Kxe7 3.Qg4 Qg1+ 4.Rd1 Qf2H
5.c4H {-10}
496184 1.463 -0.35 7. 1.Qd1 Be7 2.Bxe7 Kxe7 3.Qg4 Qg1+ 4.Rd1 Qf2 5.c4
{-10}
797628 2.256 -0.28 8t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qf3 f6 5.Qd3
{-10}
1270188 3.369 -0.28 8. 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qf3 f6 5.Qd3
{-10}
2614213 6.778 -0.12 9t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 d4 5.f5 Rd8
{-10}
3693708 9.254 -0.12 9. 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 d4 5.f5 Rd8
{-10}
5961612 14.920 -0.16 10t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qe3 5.Qg5+
Kd7 6.Rg2 d4 {-10}
14260329 34.226 -0.16 10. 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qe3 5.Qg5+
Kd7 6.Rg2 d4 {-10}
20957239 51.699 -0.13 11t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qg1+ 5.Rd1
Qf2 {HT} {-10}
33974165 1:22.3 -0.13 11. 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qg1+ 5.Rd1
Qf2 {HT} {-10}
51710804 2:07.7 -0.09 12t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qg1+ 5.Rd1
Qf2 6.Ne2 Kd7 7.Nd4 Ke8 {-10}
92273438 3:47.5 -0.08 12t+ 1.f5 Qg1+ 2.Rd1 Qxg3 3.fxe6 Rc7 4.exf7+ Kd7
5.Bh6 Bxe4 6.Bxf8 Bxc2+ 7.Ka1 Kc6 8.Bxd6 Qxd6
9.Rxd6+ Kxd6 {231}
122012556 5:03.8 0.00 12t 1.f5 Qg1+ 2.Rd1 Qxg3 3.fxe6 Qf2 4.Rd2 Qe1+
5.Ka2 Qf1 6.Rd1 Qf2 7.Rd2 Qf1 {-270}
144245753 5:58.2 0.00 12. 1.f5 Qg1+ 2.Rd1 Qxg3 3.fxe6 Qf2 4.Rd2 Qe1+
5.Ka2 Qf1 6.Rd1 Qf2 7.Rd2 Qf1 {-270}
278514705 11:14.4 -0.11 13t 1.f5 Qg1+ 2.Rd1 Qxg3 3.fxe6 Rc7 4.exf7+ Kd7
5.Bh6 Rc8 6.Bxf8 Rxf8 7.e5 Qf4 8.Rxd6+ Ke7
9.Rf6 Qe4 10.Kc1 {-110}
308107042 12:34.2 -0.10 13t+ 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qg1+ 5.Rd1
Qf2 6.Ne2 Kd7 7.Nd4 f5 8.exf6 Qxf4 {-10}
351821063 14:39.1 -0.07 13t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qe3 5.Rd1
Kd7 6.Qg7H {HT} {-10}
604134616 25:18.9 -0.07 13. 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qe3 5.Rd1
Kd7 6.Qg7 {HT} {-10}
743183116 31:36.1 -0.04 14t 1.Qd1 Be7 2.Bxe7 Kxe7 3.e5 d5 4.Qg4 Qe3 5.Rd1
Qf2 6.Ne2 a5 7.Nd4 Ba6 8.f5 {-10}
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