Author: Roy Eassa
Date: 08:54:08 05/02/02
Go up one level in this thread
On May 02, 2002 at 11:41:22, Ron Murawski wrote:
>On May 02, 2002 at 11:28:57, Roy Eassa wrote:
>
>>On May 02, 2002 at 11:22:14, Ron Murawski wrote:
>>
>>>Hi all,
>>>
>>>This one is not too tough, but some engines don't see it.
>>>
>>>[D] 2b1r3/6kn/1q1p1pp1/1pnPb2p/r1pBP2P/2P3N1/P2QNRP1/1B3R1K w - - 0 43
>>>
>>>bm: Nxh5+
>>>
>>>This was from a game, it was Horizon's 43rd move.
>>>
>>>[Event "Computer chess game"]
>>>[Site "JUBBY"]
>>>[Date "2002.05.02"]
>>>[Round "1"]
>>>[White "Horizon"]
>>>[Black "Quark v1.50"]
>>>[Result "1-0"]
>>>[TimeControl "40/900"]
>>>
>>>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8.
>>>c3 O-O 9. h3 h6 10. d4 Re8 11. Nbd2 Bf8 12. Nf1 Bb7 13. Ng3 Na5 14. Bc2 Nc4
>>>15. Bd3 c5 16. d5 Nb6 17. Be3 c4 18. Bc2 Qc7 19. Nh4 g6 20. Qd2 Kh7 21. Kf1
>>>Bg7 22. f4 exf4 23. Bxf4 Nfd7 24. Nf3 a5 25. Nd4 Ba6 26. Nc6 Na4 27. Rab1
>>>Nac5 28. Kg1 Bb7 29. Nd4 Qb6 30. Be3 Be5 31. Bf2 Nf6 32. Nde2 a4 33. Rf1
>>>Kg7 34. Rbe1 a3 35. bxa3 Rxa3 36. Bb1 Ra4 37. Bd4 Rh8 38. Rf3 Nh7 39. Ref1
>>>f6 40. R3f2 Re8 41. Kh1 h5 42. h4 Bc8 43. Nxh5+ gxh5 44. Rxf6 Nxf6 45. Qg5+
>>>Kh7 46. Rxf6 Bxf6 47. Bxf6 Re7 48. Qxh5+ Kg8 49. Qh8+ Kf7 50. Qg7+ Ke8 51.
>>>Qxe7#
>>>{White Mates} 1-0
>>>
>>>Ron
>>
>>
>>Fritz 6 on 1.2 GHz Athlon chooses the move in under 2 seconds and evaluates it
>>as a win in about 8 seconds.
>>
>>This might be an excellent position for handhelds.
>
>It takes the latest Horizon beta 20 seconds to find the move on an Athlon 1.67.
>The position was intended for mid-level WinBoard engines (or commercial
>handhelds) and is not so bad as a test position due to the fact that there is
>one and only one best move and that the move cannot be found by some engines.
>
It's been 8 minutes and so far Pocket Fritz on iPAQ doesn't see it. 2.4 million
nodes examined, 5050 nps
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