Place 1 king, 2 queens, and 5 knights on a standard 8×8 chessboard so that every unoccupied square is under attack.
Incidentally, I came up with a soluthioin where I only needed 4 knights and 2 queens to attack all but 2 squares, so the remaining knight and king were only needed to occupy these two squares and not necessarily place them under attack.
- - - - - N - -
- - - - - - - -
- - N N - - - -
- - N N - - - -
- - - - - - - -
K - - - - - - -
- - - - - - Q -
- - - - - - - Q
Another solution
