Author: Robert Hyatt
Date: 08:09:05 08/24/05
Go up one level in this thread
On August 24, 2005 at 01:44:39, Vikrant Malvankar wrote:
>Shredder vs Zappa which i found on www.shredderchess.com
>
>
>[Event "WCCC"]
>[Site "Reykjavik"]
>[Date "2005.08.20"]
>[Round "9"]
>[White "Shredder"]
>[Black "Zappa"]
>[Result "0-1"]
>
>1. e4 {Buch 0s} c5 {10s} 2. Nf3 {Buch 0s} d6 {9s} 3. d4
>{Buch 0s} cxd4 {9s} 4. Nxd4 {Buch 0s} Nf6 {11s} 5. Nc3
>{Buch 0s} g6 {8s (a6)} 6. Be3 {Buch 0s} Bg7 {8s} 7. f3
>{Buch 0s} O-O {9s} 8. Qd2 {Buch 0s} Nc6 {7s} 9. O-O-O {Buch
>0s} d5 {19s} 10. exd5 {Buch 0s} Nxd5 {11s} 11. Nxc6 {Buch
>0s} bxc6 {11s} 12. Nxd5 {Buch 0s} cxd5 {15s} 13. Bh6 {Buch
>0s} Qc7 {11s (Lxh6)} 14. Bxg7 {+0.87/20 6:31m} Kxg7
>{11:10m} 15. h4 {+0.66/21 0s} h5 {9:54m} 16. Re1 {+0.64/20
>0s} Rb8 {6:08m (e5)} 17. g4 {+0.70/18 3:43m} hxg4 {8:34m
>(Th8)} 18. h5 {+0.55/19 7:46m} Qb6 {8s (Th8)} 19. c3
>{+0.55/17 2:57m} Rh8 {2:23m}
>
>Curiously the next 3 moves r played in 3 to 4 and max. 59 sec. time at
>relatively low depths of 17 and 18 while in all the other games depth of
>Shredder wasatleasst 21 to 22 in middlegame.
>
>20. fxg4 {+0.41/17 51s} Bxg4
>{4:14m} 21. h6+ {+0.18/18 4s} Kf8 {2:50m} 22. b3 {+0.14/18
>59s} Rc8 {5:17m (Dc5)}
>
>23. Kb2 {+0.26/18 6:07m} d4 {3:35m}
>
>6 minutes thinking time bt still depth 18 on this move?
>
>24. c4 {-0.08/19 1:15m} Bf5 {1:24m}
>
>whereas 1 min. thinking time for depth 19 after only 1 move?
>
>25. Bd3 {-0.06/18
>4:39m} Bxd3 {7s} 26. Qxd3 {-0.09/19 2:26m} Qd6 {16s}
>27. Qd2 {-0.18/18 3:27m} Rh7 {2:56m (f5)} 28. Qg5 {-0.14/17
>3:00m} f5 {3:03m (Tc5)} 29. Ref1 {-0.13/18 5:44m} Rc5
>{3:03m (De6)} 30. Qg2 {-0.88/18 5:48m} Kf7 {1:53m} 31. Rf2
>{-1.19/17 2:49m} Qf6 {1:54m (e5)} 32. Rff1 {-1.20/18 7:02m}
>a5 {12s} 33. Qa8 {-1.04/18 1:30m} g5 {2:49m} 34. Kc2
>{-1.70/18 4:36m} Re5 {6s (f4)} 35. Kc1 {-1.80/17 2:47m} g4
>{1:57m (f4)} 36. Kd1 {-2.38/17 4:21m} Rh8 {11s (d3)}
>37. Qg2 {-3.22/18 3:47m} d3 {12s} 38. Qf2 {-3.22/17 3:46m}
>a4 {6s} 39. Qh4 {-4.43/15 8:08m} Re2 {2:11m} 40. Qxf6+
>{-11.89/17 7:15m} exf6 {8s} 41. b4 {-9.30/21 2:56m} Rxa2
>{2:11m} 0-1
>
>Ofcourse i may be wrong bt. what i think is all the depths are relatively low
>when compared to other games.
>Ofcourse Zappa played very well to take over in this game. :)
>
>Regards
>
>Vikrant Malvankar
Whenever you have a parallel search, you can see pathological positions that
tend to break the parallel search and produce poor performance. You also see
positions that produce better than optimal performance (super-linear speedups).
On average, everything comes out as it should...
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