Block Out… In this version, a human player and iPhone take turns placing figures (pentominoes) on the 8x8 board so that they do not overlap. The figures look a lot like Tetris pieces, but are made of five (not four) blocks each; hence the "penta" in Pentamino.

The objective is to be the last player to place a figure on the board (so that there is no more room for another piece), effectively "blocking out" your opponent (iPhone).

Features:

• Rating tracker that rates your skill level similar to chess games
• Three levels (easy, medium, hard)
• Move takeback button in case of a mistake