Sliding puzzles

These sliding puzzles consist of a number of gray pieces and one red piece in a green "room". The "room" has a light green floor and a dark green wall. The wall has a single exit. The aim of these sliding puzzles is to get the red piece in front of the exit.

	Easy puzzle, solves in 12 moves
	Hard puzzle, solves in 74 moves
	Hard puzzle, solves in ?? moves