Promotion+Square


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The **Promotion Square** is the farthest telestop of a pawn. It is the square on the same file on opponent's back rank where finally a promotion of the pawn would happen, assuming non-capturing pawn pushes. The promotion square can easily calculated from the pawn origin and color of the pawn, by adding the file to the respective back rank offset (assuming Little endian file and rank coordinates here):

code promotionSquare ::= ((color-1) & 56) + (pawnSquare & 7); // white = 0, black = 1 code

=See also=
 * Pawn Spans in Bitboards
 * Pawn Structure
 * Promotions
 * Stop Square

=Forum Posts=
 * [|making code color independant] by Georg von Zimmermann, CCC, December 08, 2003

=What links here?= include page="Promotion Square" component="backlinks" limit="20"
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