-
- Square RDeltas[] = { DELTA_N, DELTA_E, DELTA_S, DELTA_W };
- Square BDeltas[] = { DELTA_NE, DELTA_SE, DELTA_SW, DELTA_NW };
-
- init_magics(RTable, RAttacks, RMagics, RMasks, RShifts, RDeltas, magic_index<ROOK>);
- init_magics(BTable, BAttacks, BMagics, BMasks, BShifts, BDeltas, magic_index<BISHOP>);
-
- for (Square s = SQ_A1; s <= SQ_H8; ++s)
- {
- PseudoAttacks[QUEEN][s] = PseudoAttacks[BISHOP][s] = attacks_bb<BISHOP>(s, 0);
- PseudoAttacks[QUEEN][s] |= PseudoAttacks[ ROOK][s] = attacks_bb< ROOK>(s, 0);
- }
-
- for (Square s1 = SQ_A1; s1 <= SQ_H8; ++s1)
- for (Square s2 = SQ_A1; s2 <= SQ_H8; ++s2)
- if (PseudoAttacks[QUEEN][s1] & s2)
- {
- Square delta = (s2 - s1) / square_distance(s1, s2);
-
- for (Square s = s1 + delta; s != s2; s += delta)
- BetweenBB[s1][s2] |= s;