this.castleFlags[c][flagIdx] = false;
} else if (
move.end.x == oppFirstRank && //we took opponent rook?
this.INIT_COL_ROOK[oppCol].includes(move.end.y)
) {
this.castleFlags[c][flagIdx] = false;
} else if (
move.end.x == oppFirstRank && //we took opponent rook?
this.INIT_COL_ROOK[oppCol].includes(move.end.y)
) {