Combination is an addictive iPhone, iPod touch and iPod puzzle game, built by Bubblescope Games. Combination was designed using cutting edge AI research, with the levels generated, automatically proved correct and ranked in difficulty completely automatically. Of course, we went through and double-checked, just to be sure!

You can get a free demo of combination here (iTunes link), or just go straight for the full version here (iTunes link).

If you are looking for a tips and tricks to help you crack some of the more difficult levels in Combination, look at our in-depth guide, linked from the side-bar.