Author: Uri Blass
Date: 08:46:19 09/08/05
Go up one level in this thread
On September 07, 2005 at 17:44:28, F. Huber wrote:
>On September 07, 2005 at 16:47:47, Joseph Tadeusz wrote:
>
>>On September 07, 2005 at 05:14:49, Madhavan wrote:
>>
>>>[D] 8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - 0 1
>>>
>>>White to play and win
>>>
>>>Post the winning moves
>>>
>>>Spike is getting trapped,the engine couldn't find the solution immediately.the
>>>evaluation got from the engine shows +0.00
>>>
>>>The position would look losing in a real life tournament.You have to look hard
>>>and find the winning line.I wonder if this kind of puzzle would be even
>>>difficult for a Grandmasters?
>>
>>[Event "Edited position"]
>>[Site "linux"]
>>[Date "2005.09.07"]
>>[Round "-"]
>>[White "-"]
>>[Black "-"]
>>[Result "1-0"]
>>[FEN "8/p5p1/1pP3p1/p5p1/k3p3/4p3/K7/8 w - - 0 1"]
>>[SetUp "1"]
>>
>>1. c7 e2 2. c8=Q e1=Q 3. Qc4+ Qb4 4. Qc6+ Qb5 5. Qxe4+ Qb4 6. Qd3 g4 7.
>>Qd7+ Qb5 8. Qxg4+ Qb4 9. Qd7+ Qb5 10. Qd4+ Qb4 11. Qd3 g5 12. Qd7+ Qb5 13.
>>Qd4+ Qb4 14. Qd3 g6 15. Qd7+ Qb5 16. Qd4+ Qb4 17. Qd3 a6 18. Qd7+ Qb5 19.
>>Qd4+ Qb4 20. Qd3 g4 21. Qd7+ Qb5 22. Qxg4+ Qb4 23. Qd7+ Qb5 24. Qd4+ Qb4
>>25. Qd3 g5 26. Qd7+ Qb5 27. Qd4+ Qb4 28. Qd3 g4 29. Qd7+ Qb5 30. Qxg4+ Qb4
>>31. Qd7+ Qb5 32. Qd4+ Qb4 33. Qd3 b5 34. Qc2+ Qb3+ 35. Qxb3#
>>{White mates} 1-0
>
>Your solution is not ok - after move 32... it´s only a #10:
>(checked with ChestUCI Ver.4.2)
>
>This is the correct continuation:
>33.Qd3 Qb2+ 34.Kxb2 Kb4 35.Qc3+ Kb5 36.Qc7 Kb4 37.Qc6 a4 38.Kc2 a3
>39.Qc3+ Ka4 40.Qc4+ Ka5 41.Kb3 b5 42.Qc7# {Mate} 1-0
>
>Regards,
>Franz.
It is possible that 17...g4 it leads to longer mate but I am not sure
18.Qd7+ Qb5 19.Qxg4+ Qb4 20.Qd7+ Qb5 21.Qd4+ Qb4 22.Qd3 g5 23.Qd7+ Qb5
24.Qd4+ Qb4 and the question is if 25.Qd3 is forcing mate that is short enough.
Uri
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