CPW-Engine recognize

Home * Engines * CPW-Engine * Recognizer


 * 1) include "stdafx.h"

int is_rim[64] = { 1,  1,   1,   1,   1,   1,   1,   1,  1,   0,   0,   0,   0,   0,   0,   1,  1,   0,   0,   0,   0,   0,   0,   1,  1,   0,   0,   0,   0,   0,   0,   1,  1,   0,   0,   0,   0,   0,   0,   1,  1,   0,   0,   0,   0,   0,   0,   1,  1,   0,   0,   0,   0,   0,   0,   1,  1,   1,   1,   1,   1,   1,   1,   1 };

/* please note that this recognizer assumes that the position is legal, i.e. side to move is not in check */

int isDraw {

/* no pawns */ if (!b.PawnMaterial[WHITE] && !b.PawnMaterial[BLACK]) {

/* both sides have at most one minor piece - to guard against the possibility of a helpmate in the corner, we do not claim an immediate draw if the king of the weaker side stands on the edge of the board */

if (b.PieceMaterial[WHITE] < 400 &&     b.PieceMaterial[BLACK] < 400 &&      (!is_rim[b.KingLoc[WHITE]] || b.PieceMaterial[BLACK] == 0) &&      (!is_rim[b.KingLoc[BLACK]] || b.PieceMaterial[WHITE] == 0)      ) return 1;

}

/* default: no draw spotted */ return 0; } Up one Level