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Subject: Re: Nice end-game problem; here is another phenomenon, who can explain?

Author: Harald Faber

Date: 06:52:12 04/27/99

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On April 27, 1999 at 08:50:07, Bernhard Bauer wrote:

>>>
>>>       +---+---+---+---+---+---+---+---+
>>>    8  | *Q| *N| *B|   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    7  |   | *P|   | *K| B | K |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    6  | *P| P | *P|   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    5  | P |   | *P|   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    4  |   |   | P |   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    3  |   |   |   |   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    2  |   |   |   |   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>    1  |   |   |   |   |   |   |   |   |
>>>       +---+---+---+---+---+---+---+---+
>>>         a   b   c   d   e   f   g   h
>>>
>>>How can a black bishop move to e5 or e7 in this position?
>>>I see only one black bishob on c8. This bishop can not move anywhere.
>>>Can you enlighten me please?
>>>
>>>Kind regards
>>>Bernhard
>>
>>Argh! Amazing what can go wrong...put the WHITE BISHOP back to f6 and then WHITE
>>TO MOVE. Now Be7 wins while Crafty and Fritz, well, you know what...
>
>Now it's reasonable. Crafty without null move finds a mate in 6 imediatly.

But with nullmove=off, right?

>Here I'd like to add another studie from A. Troitzky
>FEN: 4B3/8/6N1/5p2/1r4p1/6pk/7b/4K2Q w
>Try your favorite chess game.
>Crafty will need some hours -:)

I suppose white to win?

>Kind regards
>Bernhard




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