Author: Günther Simon
Date: 05:28:14 10/02/05
Go up one level in this thread
On September 30, 2005 at 12:52:40, Eduard Nemeth wrote:
>Ponder - BUG Fritz 9 Engine ?
>
>fallow game I plays with S9 UCI at time on playchess against Fritz 9:
>
>[Event "Wertungspartie, 3m + 0s"]
>[Site "Maschinenraum"]
>[Date "2005.09.30"]
>[Round "?"]
>[White "Wolkenlos, Shredder 9.1 UCI"]
>[Black "Katzenmaier, Fritz 9"]
>[Result "1-0"]
>[ECO "D20"]
>[WhiteElo "2300"]
>[BlackElo "2699"]
>[PlyCount "105"]
>[EventDate "2005.09.30"]
>[TimeControl "180"]
>
>1. d4 {0} d5 {0} 2. c4 {0} dxc4 {0} 3. e4 {0} e5 {0} 4. Nf3 {0} Bb4+ {0} 5. Bd2
>{0} Bxd2+ {7} 6. Nbxd2 {0.10/12 0} exd4 {5} 7. Bxc4 {0.16/12 0} Nc6 {4} 8. O-O
>{0.15/11 0} Qf6 {5} 9. e5 {0.10/11 0} Qg6 {3} 10. Re1 {0.16/11 0} Nge7 {4} 11.
>Nb3 {-0.37/11 0} Bh3 {-0.38/11 5} 12. Nh4 {-0.67/10 8} Qg5 {-0.32/11 4} 13. Re4
>{-0.44/10 10} Nxe5 {-0.05/11 0} 14. f4 {0.38/10 12} Qxh4 {0.40/12 0} 15. Rxe5 {
>0.38/10 6} Bg4 {0.54/11 5} 16. Qe1 {0.73/9 6} Qf6 {0.62/11 0} 17. Qg3 {0.65/9 8
>} Be6 {0.91/12 0} 18. Bxe6 {0.48/11 9} O-O {2.37/12 0} 19. Bc4 {2.47/9 4} Ng6 {
>2.09/11 3} 20. Re4 {2.57/9 0} c5 {2.04/11 2} 21. Qf2 {2.37/9 6} b6 {1.82/12 5}
>22. Rae1 {2.31/10 1} Qf5 {2.40/12 2} 23. Bd3 {2.80/11 10} Rad8 {2.65/13 0} 24.
>g3 {2.87/11 12} Ne7 {2.36/11 4} 25. Rxd4 {3.27/10 4} Qf6 {2.52/12 0} 26. Rxd8 {
>3.29/10 5} Rxd8 {2.46/12 0} 27. Qe2 {3.52/9 3} h6 {2.55/11 3} 28. Qxe7 {
>3.69/10 5} Qxe7 {2.48/13 4} 29. Rxe7 {3.74/14 2} Rxd3 {2.51/13 3} 30. Kf2 {
>3.76/11 1} Rd1 {2.53/12 2} 31. Re2 {3.77/10 1} Rb1 {2.45/11 3} 32. Ke3 {
>3.80/11 7} f5 {2.48/12 0} 33. Kd3 {3.75/8 1} g5 {2.51/12 3} 34. fxg5 {3.85/8 2}
>hxg5 {2.37/12 3} 35. Kc4 {3.63/10 0} Kf7 {2.57/12 4} 36. Kb5 {4.22/12 0} Rd1 {
>2.72/12 3} 37. Rd2 {4.22/11 0} Rh1 {2.97/12 2} 38. Ka6 {4.65/8 1} Re1 {
>3.32/11 0} 39. Kxa7 {5.13/10 2} Re6 {3.73/12 2} 40. Rd7+ {5.28/10 1} Kg8 {
>4.01/11 3} 41. Kb7 {5.51/7 1} Rh6 {3.89/12 4} 42. a4 {5.53/8 2} Rxh2 {3.77/12 3
>} 43. Nd2 {5.86/11 0} Rh3 {4.16/11 2} 44. Kxb6 {6.03/9 2} Rxg3 {4.91/12 3} 45.
>Rd5 {6.47/10 1} Kf7 {4.63/11 3} 46. Rxf5+ {6.82/9 2} Ke6 {4.80/13 1} 47. Rxc5 {
>6.89/8 0} Rd3 {4.71/12 3} 48. Nc4 {7.05/7 1} Rb3+ {5.59/11 1} 49. Kc7 {
>7.43/10 1} Rb4 {5.96/11 1} 50. a5 {7.97/9 2} Kf6 {7.05/12 3} 51. a6 {9.08/10 2}
>Ra4 {8.25/11 0} 52. Na5 {9.13/8 1} Rh4 {7.23/11 1} 53. Rc3 {
>Katzenmaier,Fritz 9 gibt auf (Lag: Av=0.35s, max=1.1s) 9.31/8 0} 1-0
>
>In move 18 played Fritz 9 Engine with Ponder fast 0-0 with clear lost position
>(-2) !
>
>Is here a Ponder Bug in the Fritz 9 Engine?
>
>Ald Fritz 8 say this:
>
>[D]r3k2r/ppp1nppp/4Bq2/4R3/3p1P2/1N4Q1/PP4PP/R5K1 b kq - 0 1
>
>Analysis by Fritz 8:
>
>18...fxe6 19.Sxd4 0-0 20.Sxe6 Sg6 21.Sxf8
>² (0.66) Tiefe: 6/20 00:00:00 67kN
>18...fxe6 19.Sxd4 0-0 20.Sxe6 Sg6 21.Sxf8
>² (0.66) Tiefe: 7/17 00:00:00 74kN
>18...fxe6 19.Sxd4 0-0 20.Sxe6 Sg6 21.Sxf8 Sxe5 22.fxe5 Db6+ 23.Df2 Dxf2+ 24.Kxf2
>Txf8+
>² (0.47) Tiefe: 8/21 00:00:00 170kN
>18...fxe6--
>± (0.75) Tiefe: 9/23 00:00:02 410kN
>18...fxe6 19.Tae1 Kf7 20.Sxd4 Sg6 21.T5e4 Thc8
>± (1.32) Tiefe: 9/35 00:00:06 1536kN
>18...fxe6 19.Tae1 Kf7 20.Sxd4 Sg6 21.T5e4 Thc8 22.Sxe6 Kg8 23.Db3 Tab8 24.T4e3
>± (1.38) Tiefe: 10/26 00:00:11 2669kN
>18...fxe6 19.Tae1 Kf7 20.Sxd4 Sg6 21.T5e4 Thc8 22.Sxe6 Kg8 23.Db3 Tab8 24.T4e3
>± (1.38) Tiefe: 11/28 00:00:24 5365kN
>18...fxe6 19.Tae1 Kf7 20.Txe6 Dxe6 21.Txe6 Kxe6 22.Dxg7 Sc6 23.Sxd4+
>+- (1.60) Tiefe: 12/32 00:00:50 11662kN
>18...fxe6 19.Tae1 Kf7 20.Txe6 Dxe6 21.Txe6 Kxe6 22.Dxg7 Sc6 23.Sxd4+
>+- (1.66) Tiefe: 13/33 00:02:02 33806kN
>
>(Nemeth, Privat 30.09.2005)
>
>Answer?
Hi Eduard,
Three questions:
1.) Why ponder? (if it _was_ a bug what had it to do with ponder?)
2.) Why bug?
3.) What else should it play in that dead lost position,
which is better than ...O-O?
You should analyse a bit further and you will see that every move except
O-O loses much faster, actually it could have resigned here also...
You need a better computer or better analysis by your own ;-)
Guenther
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