+inline Square pawn_push(Color c) {
+ return c == WHITE ? DELTA_N : DELTA_S;
+}
+
+inline Square from_sq(Move m) {
+ return Square((m >> 6) & 0x3F);
+}
+
+inline Square to_sq(Move m) {
+ return Square(m & 0x3F);
+}
+
+inline bool is_special(Move m) {
+ return m & (3 << 14);
+}
+
+inline bool is_promotion(Move m) {
+ return (m & (3 << 14)) == (1 << 14);
+}
+
+inline int is_enpassant(Move m) {
+ return (m & (3 << 14)) == (2 << 14);
+}
+
+inline int is_castle(Move m) {
+ return (m & (3 << 14)) == (3 << 14);
+}
+
+inline PieceType promotion_piece_type(Move m) {
+ return PieceType(((m >> 12) & 3) + 2);
+}
+
+inline Move make_move(Square from, Square to) {
+ return Move(to | (from << 6));
+}
+
+inline Move make_promotion(Square from, Square to, PieceType pt) {
+ return Move(to | (from << 6) | (1 << 14) | ((pt - 2) << 12)) ;
+}
+
+inline Move make_enpassant(Square from, Square to) {
+ return Move(to | (from << 6) | (2 << 14));
+}
+
+inline Move make_castle(Square from, Square to) {
+ return Move(to | (from << 6) | (3 << 14));
+}
+
+inline bool is_ok(Move m) {
+ return from_sq(m) != to_sq(m); // Catches also MOVE_NULL and MOVE_NONE
+}
+
+#include <string>
+