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Subject: Re: Is this legal?

Author: Laurens Winkelhagen

Date: 02:23:57 11/22/04

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On November 21, 2004 at 23:48:34, Peter Darin wrote:

>
>IMO In the position black can mate and it is a mating material because of the
>White pawns which can obstruct the white king and white can be mated.
>
>If a game is Knight vs Knight or Bishops vs Bishops (with no pawns) it is a draw
>due to insufficient material.
>
>Regards
>
>Peter

By that reasoning even KNvKN and KBvKB are not cases of insufficient mating
material. In both cases the one piece can obstruct it's king so that the
opponents piece can mate. Earlier in this thread we already saw an example of
KBvKB. KNvKN is similar of course. (hmm lets try some FEN of the top of my head,
forgive me when this diagram fails)
[D] kn6/2N5/1K6/8/8/8/8/8 - - 1 0

Regards, Laurens.



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