Abstract: A puzzle includes a set of graduated size markers, each one having a different whole number indicia thereon, the indicia including the numbers 2 through 6. A base has a set of five positions on the face thereof, and one of the positions is a starting position and has a starting indicia associated therewith. Another one of the positions is a finishing position and has a finishing indicia associated therewith. At least one other one of the positions is a limited position and has indicia associated therewith designating certain ones only but not all of the whole numbers 2 through 6. The markers are stacked in a vertical pile at the starting position, and they are then moved seriatum from the pile to other positions with smaller markers always being placed above larger markers according to the puzzle rules. Only those markers having corresponding number indicia as the number indicia of the limited position may be moved to the limited position.