In chess, how many times can a piece be attacked at once?
There are 16 ways a piece can be attacked in chess, 8 positions where a knight can attack from and 8 directions which all other pieces use to attack. However there is no way in chess to fill all of these spots, as the bishops are on opposite colors. The most I have been able to find to answer this is 15, using pawn promotion to get more knights:



UPDATE as corsiKa pointed out, En Passant does exist as a 17th way a piece can be attacked, though it is limited to pawns attacking pawns, when the pawn being attacked has made it's fist move two spaces to come beside the attacking pawn. This can be done here, however it still leaves a maximum of 15 attacks. That would look like this: