Author: Eduard Nemeth
Date: 13:15:28 12/22/04
Go up one level in this thread
On December 21, 2004 at 19:04:27, Uri Blass wrote:
>On December 21, 2004 at 18:58:51, Uri Blass wrote:
>
>>On December 21, 2004 at 16:11:37, F. Huber wrote:
>>
>>>On December 21, 2004 at 16:02:18, Graham Banks wrote:
>>>
>>>>On December 21, 2004 at 09:57:08, Eduard Nemeth wrote:
>>>>
>>>>>With NEW Junior9.ENG!
>>>>>
>>>>>Eduard
>>>>>
>>>>>
>>>>>On December 21, 2004 at 08:24:25, Jouni Uski wrote:
>>>>>
>>>>>>http://f23.parsimony.net/forum50826/messages/115942.htm
>>>>>>
>>>>>>Jouni
>>>>
>>>>
>>>>Is this different to the one dated 17/12/04 with engine 9.0.0.1?
>>>>Graham.
>>>
>>>Hi Graham,
>>>
>>>YES, the current update is from today (21/12/04) and has also a bug-fixed
>>>Junior9 engine 9.0.0.2 - just download the new GUI8.IUP and run IUpgrade.
>>>
>>>(BTW, the first patch was from 13/12/04)
>>>
>>>Regards,
>>>Franz.
>>
>>What exactly is the bug that was fixed?
>>
>>Junior9 like previous versions has bugs that were never fixed for many years.
>>
>>For example bug of playing losing move in simple drawn position or bug in
>>stalemate detection that can cause it to see mate in position when there is no
>>mate.
>>
>>for one of the bugs see
>>http://www.talkchess.com/forums/1/message.html?401412
>>
>>For the stalemate bug
>>see and check if the engine see mate when there is no mate.
>>8/2p5/2P1R3/3k4/4n2p/6pP/6P1/4r1NK w - - 0 1
>>
>>Uri
>
>The first case can be described as no bug when Junior's pruning simply miss
>important things like null move pruning miss other important things but I
>consider the second case as a bug because even with selective search a program
>is supposed not to see mate that does not exist and at least before reporting
>mate score it should check everything for the defender to check that it is not
>wrong.
>
>Uri
Uri see here (what play J9?):
[Event "Wertungspartie, 5m + 0s"]
[Site "Maschinenraum"]
[Date "2004.10.26"]
[Round "?"]
[White "Wolkenlos, Junior 8"]
[Black "WASABE1, Fritz 8"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2349"]
[BlackElo "2407"]
[PlyCount "112"]
[EventDate "2004.10.26"]
[TimeControl "300"]
1. d4 {0} Nf6 {0} 2. c4 {0} g6 {0} 3. Nf3 {0} Bg7 {0} 4. Nc3 {0} O-O {0} 5. e4
{0} d6 {0} 6. Be2 {0} e5 {0} 7. O-O {0} Na6 {0} 8. Be3 {0} Ng4 {0} 9. Bg5 {0}
Qe8 {0} 10. dxe5 {0} dxe5 {0} 11. h3 {0} h6 {0} 12. Bd2 {0} Nf6 {0} 13. Be3 {0}
Qe7 {0} 14. Nd5 {0} Qd8 {0} 15. Nxf6+ {0} Qxf6 {0} 16. c5 {0} Nb8 {0} 17. Qc1 {
13} Kh7 {0.22/13 7} 18. b4 {12} Nc6 {0.28/12 0} 19. b5 {10} Nd4 {0.34/13 1} 20.
Bxd4 {4} exd4 {0.34/12 1} 21. e5 {9} Qf5 {0.25/11 6} 22. Rd1 {8} Bxe5 {
-0.06/11 23} 23. a4 {1} Re8 {-0.09/10 7} 24. Bd3 {14} Qf6 {-0.09/11 13} 25. Re1
{1} a6 {-0.03/10 6} 26. Be4 {8} axb5 {-0.22/9 6} 27. axb5 {1} Bf4 {-0.31/11 5}
28. Qb2 {0} Rxa1 {-0.25/11 5} 29. Qxa1 {0} Kg7 {-0.16/11 16} 30. Qa3 {5} Bf5 {
-0.75/11 8} 31. Qd3 {5} Rxe4 {-0.84/12 5} 32. Rxe4 {6} Bxe4 {-1.00/14 0} 33.
Qxe4 {1} d3 {-0.72/13 3} 34. Qxd3 {5} Qa1+ {-0.81/14 2} 35. Qf1 {5} Qc3 {
-0.81/14 3} 36. c6 {4} bxc6 {-1.28/12 5} 37. bxc6 {0} Qxc6 {-1.25/13 5} 38.
Qa1+ {10} Qf6 {-1.34/13 5} 39. Qa4 {8} c5 {-1.31/13 0} 40. Kf1 {4} Qd6 {
-1.31/11 0} 41. Qa1+ {4} Kg8 {-1.41/12 5} 42. Qa8+ {6} Kh7 {-1.41/13 6} 43. g3
{1} Qd3+ {-1.38/12 5} 44. Kg2 {4} Bd6 {-1.41/13 1} 45. Qa2 {11} c4 {-1.44/13 4}
46. Nd2 {1} Qe2 {-1.47/12 2} 47. Qxc4 {4} Qxd2 {-1.47/13 0} 48. Qxf7+ {5} Kh8 {
-1.44/12 0} 49. Qf6+ {5} Kg8 {-1.41/12 0} 50. Qxg6+ {14} Kf8 {-1.31/12 0} 51.
Qg4 {3} Qd5+ {-1.69/11 4} 52. Qf3+ {3} Qxf3+ {-1.16/14 8} 53. Kxf3 {1} Kf7 {
-0.88/15 4} 54. Kg4 {3} Kg6 {0.00/15 4} 55. f4 {2} h5+ {-1.50/18 4} 56. Kh4 {0}
Be7# {(Lag: Av=0.53s, max=1.4s) -#1/2 0} 0-1
[D]8/8/3b2k1/7p/5PK1/6PP/8/8 w - - 0 1
Junior 8 played on CB Server here Kh4?? with mate in 1 move!
Eduard
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