Author: Uri Blass
Date: 06:44:29 05/02/03
Go up one level in this thread
On May 02, 2003 at 09:27:04, Uri Blass wrote:
>On May 02, 2003 at 09:16:13, Uri Blass wrote:
>
>>On May 02, 2003 at 09:08:08, Uri Blass wrote:
>>
>>>On May 02, 2003 at 09:01:29, Mogens Larsen wrote:
>>>
>>>>On May 02, 2003 at 08:36:30, Djordje Vidanovic wrote:
>>>>
>>>>>Hello Tony,
>>>>>
>>>>>which book is Ruffian using? Sorry if I am pestering you with a question
>>>>>already asked, but I am really interested. Fritz 8 must be using its own Fritz
>>>>>8 book (by A. Kure), how about Ruffian?
>>>>>
>>>>>Thanks in advance.
>>>>
>>>>Ruffian is using its own book available at the website. And since it's installed
>>>>as an UCI engine there's no book learning. Essentials from answers to similar
>>>>questions like the one above :-).
>>>>
>>>>Regards,
>>>>Mogens
>>>
>>>Does Ruffian has some other kind of learning that is not book learning to
>>>prevent losing another game in the same way?
>>>
>>>I can think about positional learning that is based only on the scores.
>>>
>>>Uri
>>
>>For example using more time in move 51 when you remember that you had a fail low
>>at move 52
>>
>>I am interested to know what are the practical results of the following way of
>>learning:
>>
>>1)playing many the moves that you played in a previous games in 0 seconds
>>2)starting to calculate and using more time one move before the move that you
>>remember a negative evaluation of more than 0.5 pawn against yourself.
>>
>>What is the probability that a program that lose is going to lose again in these
>>conditions?
>>
>>Note that one of the possibilities may be that the opponent may have no time to
>>use on your time so the opponent may play a different move earlier.
>>
>>Uri
>
>I can add that maybe this kind of learning could help here
>
>[Event "SSDF"]
>[Site "Tony Hedlund"]
>[Date "2003.05.02"]
>[Round "5"]
>[White "Fritz 8 A1200"]
>[Black "Ruffian 1.0.1 A1200"]
>[BlackElo "2671"]
>[ECO "C11"]
>[Result "1-0"]
>
>1. e4 {0s} e6 {book 0s} 2. d4 {0s} d5 {book 0s} 3. Nc3 {0s}
>Nf6 {book 0s} 4. Bg5 {0s} dxe4 {book 0s} 5. Nxe4 {0s} Be7
>{book 0s} 6. Bxf6 {0s} Bxf6 {book 0s} 7. Nf3 {0s} O-O {book
>0s} 8. Qd2 {0s} Nd7 {book 0s} 9. O-O-O {0s} b6 {book 0s}
>10. Bc4 {0s} c6 {-0.13/13 4:23m} 11. Qf4 {9:34m (Nxf6+)}
>Be7 {-0.05/14 2:44m} 12. Ne5 {4:48m} Qc7 {-0.06/14 0s}
>13. Qg3 {4:02m} Bd8 {-0.09/13 28s} 14. Kb1 {9:39m (Ng5)} a5
>{-0.14/13 7:50m} 15. Rhe1 {3:21m} a4 {-0.14/13 3s} 16. a3
>{9:18m (Re3)} Nf6 {-0.17/13 5:07m} 17. Bd3 {11:13m} Nd7
>{-0.25/14 0s} 18. f4 {4:12m} Ba6 {-0.40/13 4:09m} 19. Bxa6
>{6:00m (Qf3)} Rxa6 {-0.48/16 22:50m} 20. Qf3 {0s (Qc3)}
>Nxe5 {-0.44/15 17:21m} 21. dxe5 {0s} Be7 {-0.45/14 2:11m}
>22. Qg4 {4:00m} Ra5 {-0.30/13 1:51m} 23. h4 {1:01m (c4)}
>Rd8 {-0.16/13 2:02m} 24. h5 {2:52m} Rad5 {0.00/14 0s}
>25. Nc3 {5:21m (Nf6+)} Rd4 {+0.04/13 1:07m} 26. Rxd4
>{3:21m} Rxd4 {-0.02/17 0s} 27. h6 {3:46m (Re4)} g6
>{+0.05/15 1:26m} 28. Ne4 {4:10m (Qf3)} Qd8 {+0.08/14 56s}
>29. Qe2 {6:26m} b5 {0.00/16 0s} 30. c3 {3:52m} Rd5 {0.00/16
>0s} 31. Rc1 {3:28m (g4)} Kf8 {+0.01/13 1:11m} 32. Rf1
>{5:16m (g4)} Qd7 {+0.01/13 53s} 33. Ka1 {1:43m (Kc1)} c5
>{+0.07/14 1:00m} 34. g4 {6:28m} c4 {0.00/16 42s} 35. Ka2
>{1:04m (g5)} Ke8 {0.00/13 49s} 36. Qg2 {1:08m (Ng5)} Qc7
>{0.00/14 54s} 37. Qf2 {50s (Ng5)} Kf8 {-0.04/13 49s} 38. f5
>{1:41m} gxf5 {-1.78/16 7:40m} 39. gxf5 {0s} Qxe5 {-1.74/15
>45s} 40. f6 {0s} Qxe4 {-1.95/15 1:13m} 41. fxe7+ {0s} Kxe7
>{-4.84/18 21:26m} 42. Qxf7+ {0s} Kd6 {-4.34/16 4:57m}
>43. Qb7 {0s} Qc2 {-6.28/16 6:40m} 44. Qb6+ {1:00m} Ke7
>{-9.01/18 2:22m} 45. Qc7+ {0s} Rd7 {-9.01/16 2:09m}
>46. Qc5+ {0s} 1-0
>
>Ruffian lost after Kf8
>With more time Ruffian says
>
>depth=13 -0.04 Kf8 f5 gxf5 gxf5 Qxe5 f6 Bd6 Qg2 Ke8 Qg8+ Bf8 Qxh7 Qh2 Re1 Bxh6
>Nodes: 22661583 NPS: 499153
>Time: 00:00:45.40
>
>depth=14 +0.00 Qd7 g5 Kf8 Re1 Kg8 Nf6+ Bxf6 exf6 Rd2 Re2 Rd1 Qc5 Ra1+ Kxa1 Qd1+
>Ka2 Qb3+ Ka1 Qd1+
>Nodes: 72064174 NPS: 498196
>Time: 00:02:24.65
>
>depth=15 -0.01 Qd7 Re1 Qc7 g5 Kf8 Nf6 Bxf6 gxf6 Qd7 Rg1 Rd2 Qc5+ Ke8 Qb6 Kf8
>Qb8+ Qe8 Qc7
>Nodes: 147861573 NPS: 508954
>Time: 00:04:50.52
>
>Note also that I do not understand the reason that Ruffian used so little time
>because based on the reported time it had time on the clock.
>
>I wonder if Ruffian's time management is better in Leo's tournament(40/40 time
>control).
>
>Uri
It seemed that Qd7 could not save Ruffian
It seems that after Qd7 the move Qb6 is winning and Ruffian simply lose because
of lack of knowledge aout pawn storms.
Here is analysis by fritz8.0.0.8(not a winning score but a d\fail high on Qb6 at
depth 16)
Fritz 8 A1200 - Ruffian 1.0.1 A1200
[D]4k3/3qbp1p/4p1pP/1p1rP3/p1p1NPP1/P1P5/KP3Q2/5R2 w - - 0 1
Analysis by Fritz 8:
38.Qg1 Kf8 39.Qb6 Kg8 40.Rf2 Qd8 41.Qc6
± (0.72) Depth: 6/21 00:00:00 96kN
38.Qg1 Kf8 39.Qb6 Kg8 40.Rf2 Qd8 41.Qc6
± (0.72) Depth: 7/17 00:00:00 101kN
38.Qg1 Qc7 39.Qh2 Kf8 40.Qe2 Qc6 41.Kb1 Kg8 42.Qf3 Kh8
² (0.66) Depth: 8/23 00:00:00 254kN
38.Qb6!
² (0.69) Depth: 8/23 00:00:00 280kN
38.Qb6 Qd8 39.Qc6+ Kf8
± (0.72) Depth: 8/23 00:00:00 317kN
38.Qb6 Qd8 39.Qb7 Kf8 40.f5
± (0.72) Depth: 9/25 00:00:01 487kN
38.Qb6 Qd8 39.Qc6+ Kf8 40.f5 Qe8 41.Qb6 Bd8 42.Qa6 gxf5 43.gxf5 exf5 44.Rxf5
Rxe5 45.Qd6+
± (0.72) Depth: 10/30 00:00:03 942kN
38.Qb6 Qd8 39.Qc6+ Qd7 40.Qa6 Kf8 41.Qb6
± (0.72) Depth: 11/35 00:00:06 2315kN
38.Qb6 Qd8 39.Qc6+ Qd7 40.Qa6 Kf8 41.Qb6 Qd8
± (0.72) Depth: 12/38 00:00:15 6205kN
38.Qb6 Qd8 39.Qg1 Qc7 40.Qh1 Rd3
± (0.72) Depth: 13/34 00:00:31 13005kN
38.Qb6 Qd8 39.Qg1 Qc7 40.Qh1 Rd3
± (0.72) Depth: 14/40 00:01:01 25826kN
38.Qb6 Qd8 39.Qa6 Kf8 40.f5 exf5 41.gxf5 Kg8 42.fxg6 hxg6 43.Nf6+ Bxf6 44.Rxf6
b4 45.cxb4 Rxe5
± (0.78) Depth: 15/41 00:02:45 71466kN
38.Qb6!
± (1.06) Depth: 16/44 00:06:54 178684kN
(Blass, Tel-Aviv 02.05.2003)
Uri
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