Nuts & Bolts Sort Puzzle takes the classic color-sorting puzzle into a workshop packed with bolts and brightly colored nuts. The goal is straightforward enough to pick up instantly but genuinely tricky to master: get every bolt showing a single, clean color. It's color water sorting reinvented with hardware — an oddly relaxing puzzle that gets more demanding with every level.
Sort mixed nuts by color, screwing them onto bolts until each bolt holds only one color. Tap a nut to select it, then tap the target bolt to twist it into place. Each level raises the difficulty, so smart, strategic thinking pays off more than speed.
The same tap-to-sort hardware mechanic carries straight into Nuts Puzzle: Sort By Color, another color-sorting challenge built around screwing nuts onto matching bolts with progressively trickier level designs. For a different take on the same organize-by-color logic, Yarn Fever! Unravel Puzzle swaps the hardware theme for colorful yarns across methodical, relaxing boards. Browse the full Puzzle games catalog for more brain-training challenges, or check out Boys games and the Color games category for related picks.