15-pack is a PC iteration of the old 15 number "Impossible" game, except this time you can change the board size from the familiar 4x4 to a range of options. Choose from 3x3 to as large as 8x8 with the possibility of rectangular shapes like 5x7 for variety. Change the skins to add variety to the game interface with six included options. There are game sounds and background music plus a digital move counter and timer. If you thought getting 15 numbers in order was tough, wait until you've spent some time with the large boards in this beauty.
