The pawn can't stand alone!
Discrete Mathematics
Level
3
There are 6 chess pieces you'd like to put into 4 identical transparent boxes for display: King, Queen, Bishop, Knight, Rook, & Pawn.
How many ways can you arrange all the 6 pieces such that there are no empty boxes and that the pawn is not presented alone in one box?
by
Worranat Pakornrat