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Subject: Re: How to define a candidate passer

Author: Tony Werten

Date: 23:53:48 01/05/06

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On January 04, 2006 at 14:17:48, Gerd Isenberg wrote:

>On January 03, 2006 at 05:54:26, JW de Kort wrote:
>
>>Can anyboby answer the question in the header?
>>
>>Thanks!
>
>Not yet a passer, but already no counter pawns on the same rank (i call the
>"open"), but opposite guards - so that advancing the pawn results in a lever
>(pawn capture distance). If the number of own neighbourd "helper" pawns,
>supporting the advance, is greater or equal than the number of guard pawns, it
>is an candidate passer. Here white b4-pawn and black g5-pawn are candidate
>passers:


BUT make sure You don't count the B-pawn as a candidate in this case (or you'll
think you have 2 passed pawns (b and c)

Tony


[D]6k1/8/p7/5ppp/1PP5/5P1P/8/6K1 w - -


>
>[D]6k1/8/2p5/5ppp/1PP5/5P1P/8/6K1 w - -
>
>But here the same pawns are no longer candidates:
>
>[D]6k1/2p5/2p5/6pp/1PP5/5P1P/8/6K1 w - -
>
>Another kind to consider are "advanced" backward pawns, where the guard is
>rammed by an own neighbourd pawn and not defended by an own pawn. The own
>neighbour becomes free if the guard pawn captures:
>
>[D]6k1/8/2p5/2P2ppp/1P6/5P1P/8/6K1 w - -
>
>Gerd



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