U64 bishopAttacks(U64 occ, enumSquare sq) {
return
rssbss[sq][(occ >> 9) & 63][0] & // 2nd rank rssbss[sq][(occ >> 17) & 63][1] & rssbss[sq][(occ >> 25) & 63][2] & rssbss[sq][(occ >> 33) & 63][3] & rssbss[sq][(occ >> 41) & 63][4] & rssbss[sq][(occ >> 49) & 63][5] ; // 7th rank
}
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