Author: Christophe Theron
Date: 16:45:28 12/22/99
Go up one level in this thread
On December 22, 1999 at 19:26:43, Dann Corbit wrote:
>On December 22, 1999 at 19:15:03, Vincent Lejeune wrote:
>>Here's a game from ICC, RebelTiger spent more than 30 sec with its last move and
>>lost on time. Last move was an underpromotion : coincidence or real trouble ?
>>
>>[Event "ICS game"]
>>[Site "192.168.0.2"]
>>[Date "1999.12.23"]
>>[Round "-"]
>>[White "Erikasparov"]
>>[Black "RebelTiger"]
>>[Result "1-0"]
>>[TimeControl "60+8"]
>>
>>1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8.
>>h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Qc7 11. Bd2 Ngf6 12. O-O-O e6 13. Qe2 O-O-O 14.
>>Ne5 Nxe5 15. dxe5 Nd7 16. f4 Be7 17. Ne4 Nc5 18. Nc3 f6 19. exf6 gxf6 20.
>>Be3 Kb8 21. g4 Bd6 22. Rhf1 Qe7 23. Qf2 b6 24. Qf3 Kb7 25. Nb5 Bb8 26. Nd4
>>Qe8 27. b4 e5 28. fxe5 fxe5 29. Nxc6 Rxd1+ 30. Kxd1 e4 31. Qf7+ Qxf7 32.
>>Rxf7+ Kxc6 33. bxc5 bxc5 34. Rf6+ Kd5 35. Ke2 Rg8 36. Rg6 Rxg6 37. hxg6 Ke6
>>38. Bxh6 Kf6 39. g7 Kf7 40. Ke3 Be5 41. Kxe4 Bd4 42. Kd5 Kg8 43. c4 Kh7 44.
>>a4 Bf2 45. a5 a6 46. Kc6 Bg3 47. Kb7 Bd6 48. Kxa6 Bc7 49. Kb5 Bxa5 50. Kxa5
>>Kxh6 51. g8=R
>>{RebelTiger forfeits on time} 1-0
>
>A lot of chess programs will have this problem which is (I think) the played
>move was not the expected move. Since it was an underpromotion, it may have
>been especially clever and caused a complete research of the solution space.
>
>You can see the same effect many times when the pv shows that move 'x' is
>expected and the opponent chooses move 'y'.
Tiger would never loose on time just because of this. Complete research happen
all the time and it is not a big problem. Further, Tiger has some security
systems that would force it to play before losing on time.
There is maybe a problem in handling underpromotion... You can be sure that Lex
will have a look at it.
>I think Rebel knows about underpromotions, but I may be mistaken. Why not ask
>over on the Rebel board?
>http://www.rebel.nl/cgi-bin/Ultimate.cgi?action=intro
I could also simply be a problem with the connection...
Christophe
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