Nut Puzzle: Color Sort is a color matching sorting game where you have to sort all the color bolts. Make sure each bolt contains only bolt models of the same color and advance to the next level! Don’t worry if you get stuck, you can always ask for helpful tips! Can you solve all problems? Can run in PC and mobile browsers. Nut Puzzle, Color Sort, brain training, puzzle game, logic puzzle, matching game, sorting game, free online game, PC game, mobile game, cognitive skills, problem-solving, 1 player, brain game