Thanks @OrbWinder! I'm glad you enjoyed the game and really appreciate your helpful comment. You're right about puzzles being solely generated from images, though I always check they are solvable with pure logic. I guess you're already familiar with this kind of puzzles, looks like Cluepix is of an acquired taste as either people already knew Picross, Nurikabe & alikes and enjoyed my game, or they just didn't understand it. But the game sure isn't flawless. I'm working on a version with new and more progressive puzzles that'll be out in december. A simpler version too as I'm not 100% happy with the colors stacks right now. It makes the game and UI rather busy and look more complex than it is. Some colors being too close, as you saw, is also a problem that version should fix, having no stacks or even palette.