Very good logic puzzle game, much better than the first one. Some of the later levels are almost on the level of Tametsi, although I didn't need to use the "pencil" function as often as in Tametsi. The logic rules are pretty strong when I remember them, but I would have loved a quick rules summary when I come back to the game after time away instead of having to try to find the level where the rule was first introduced to refresh my memory. Most of my errors were due to mixing up left-click and right-click, which is sadly not universal between games like this.

Recommended for lovers of Tametsi, Hexcells, and Globesweeper: Hex Puzzler.