Polyominoes for Mac

From Kevin Gong:

Polyominoes is a challenging game based on polyominoes, which are pieces made up of squares. In Polyominoes, you can use pentominoes, tetrominoes, trominoes, hexominoes, or create your own set of pieces. Polyominoes is really four games in one:

• In GAME mode, you have a very interesting strategy game in which you try to put the last piece on the board.
• In CHALLENGE mode, you're provided with a position from the game mode in which you're challenged to find the winning move (similar to chess mate-in-x puzzles).
• In JIGSAW PUZZLE mode, you try to place all the pieces on the board (there are 100 boards to choose from).
• In SPANNING PUZZLE mode, you try to span the board with the fewest number of pieces.