Candidate+Passed+Pawn

a pawn on a half-open file, which, if the board had only pawns on it, would eventually become a passed pawn by moving forward. Whereas this definition is obvious for a human, in a form presented above it would require no less than a separate recursive search routine. For that reason, computers have to use approximations of that rule.
 * Home * Evaluation * Pawn Structure * Candidate Passed Pawn**
 * [[image:http://webchess.freehostia.com/diag/chessdiag.php?fen=8/p7/8/PP3ppp/8/5P1P/8/8%20w%20-%20-&size=medium&coord=yes&cap=no&stm=no&fb=no&theme=classic&color1=E3CEAA&color2=635147&color3=000000]] ||~ || **Candidate passed pawn**,

One possibility is to define a pawn as a candidate, if no square on its path is controlled by more enemy pawns than own pawns. However, this simple heuristics rules out an early recognition of a candidate passed pawns. For example with white pawns on a4 and b5 and black pawn on a7, the b5 pawn would be viewed as a candidate passer only after a4-a5. || toc =See also=
 * White and Black candidates (b5, g5) ||~ ||^ ||
 * Candidates (Bitboards).
 * Faker
 * Hidden Passed Pawn
 * Passed Pawn
 * Pawn Majority
 * Unstoppable Passer

=Forum Posts=
 * [|How to define a candidate passer] by Jan Willem de Kort, CCC, January 03, 2006
 * [|Outside passer and candidate passer: definition wanted! :-)] by Alessandro Scotti, CCC, February 27, 2006
 * [|Improving evaluation of passed pawns] by Ben-Hur Carlos Vieira Langoni Junior, CCC, January 22, 2011 » Passed Pawn

=External Links=
 * [|Pawn Power in Chess by Hans Kmoch - Glossary of Terms - Chess Forums] - [|Chess.com]
 * [|Candidates Tournament from Wikipedia]

=References= =What links here?= include page="Candidate Passed Pawn" component="backlinks" limit="20"
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