Pentominoe set in a wood box with cover. The box is about 5.25" x 5.25"x .1" deep. In addition to all the things that the pentominoes pieces will do, there is a 2 person game you can play on the cover where we have laser engraved a checkerboard. Pentominoes Chess Game: The placement of pentominoes on a checkerboard makes an excellent strategy game for 2 people. Each player chooses 6 pieces (do not use the square piece), alternating picks, until all are chosen. Alternating turns, each player then places a piece on the board. The object of the game is to be the last player to place a pentominoe piece on the checkerboard. The pieces must not overlap or extend beyond the boundary of the board. The game will last at least five, and at most twelve, moves, can never result in a draw, has more openings than chess, and will fascinate players of all ages.