A demoscene-flavored adaptation of the Peg Solitaire puzzle: a board with a cross-shaped arrangement of holes, some of which are occupied by pegs. The only legal move is to 'jump' a peg over a neighboring peg into a hole at the other side, which clears away the intervening peg. The board is solved by removing all pegs except one, if all valid moves are exhausted before this happens, you lose - and have to start over. Poof offers ten levels of play, each with a different initial board layout.