attacks.h File Reference

Precomputed king and knight attack tables. More...

#include "scid/core/primitives.h"

Include dependency graph for attacks.h:

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Namespaces
namespace	scid
	Public namespace for libscid.
namespace	scid::core
	Chess games, positions, movetext and notation.

Variables
const squareT	scid::core::knightAttacks [66][9]
	Knight attack targets for each square, terminated by NULL_SQUARE.
const squareT	scid::core::kingAttacks [66][9]
	King attack targets for each square, excluding castling, terminated by NULL_SQUARE.

Detailed Description

Precomputed king and knight attack tables.

Each attack list has room for eight legal targets plus a NULL_SQUARE terminator. The COLOR_SQUARE and NULL_SQUARE sentinel rows contain only NULL_SQUARE values, so callers can iterate without first testing whether the source square is a normal board square.