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Subject: Re: Deepest chess problem ever composed?

Author: Uri Blass

Date: 13:25:14 09/15/00

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On September 15, 2000 at 15:53:02, Helmut Conrady wrote:

>On September 15, 2000 at 09:38:12, walter irvin wrote:
>
>>On September 15, 2000 at 08:18:59, Helmut Conrady wrote:
>>
>>>Im wondering, what is the deepest chessproblem ever composed. There is a problem
>>>created by Petrovic in 1969 which might lead to a mate in 270.
>>>
>>>[D]8/Bk3p1p/1P3p2/KP2n2p/1P1p4/1Pp2p2/B1P5/7B w - - 0 1
>>>
>>>Unfortunately I haven t got the solution.
>>>
>>>Can onyone explain how to win this.
>>>Does anyone know a deeper problem?
>>>
>>>Thanks in advance.
>>>
>>>Helmut
>>
>>you are wrong the deepest chess position is indeed the start position and no one
>>has ever solved it and no one ever will .if anyone can find a deeper problem
>>show me .
>
>You re wrong. I asked Fritz. He told me 1. e4 leads to a mate in 6543 moves
>while all others draw!

Can you post the main line of Fritz?

mate in 6543 is a draw by the 50 move rule because there are 96 possible pawns
moves and 30 possible captures.
There are at most 126 moves that are captures or pawn moves and there are less
than it because some pawns pushes are captures or some pawns are captured before
they go to the 8th rank(1st rank).

Even if you assume that there are 126 captures or pawn moves then it is
impossible to put them in 6543 moves(every move is 2 plies except the last move)
without getting a draw by the 50 move rules.

Uri



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