More colors.
A little more thought.
Five colors, four nuts each. Keep a spare bolt open and find your own route through the harder boards.
Like goes with like.
Move one top nut at a time onto an empty bolt or a matching top color. A bolt holds four nuts.
Leave a little room.
An empty bolt gives you somewhere to park a nut while you uncover the color underneath. Undo is always free.
One color, one bolt.
Finish with four nuts of the same color on each filled bolt. There is no timer; take your time.
Nuts color sort, on your terms.
This is an original browser puzzle from Playgames. It uses the familiar color-sorting rule with freshly constructed, solvable boards. It is separate from the games published by Orange B and other studios.
Practice has four colors, Challenge has five. The daily board changes at 00:00 UTC. Your board stays in this browser; usage events are sent to Google Analytics. Hints suggest a move towards a solution when the bounded search finds one. They do not promise the shortest route.
Can I undo, restart or make a puzzle easier?
Undo reverses a move made in this session. Restart restores the same starting board. Add up to two spare bolts for extra space. A move counter records moves and spare-bolt additions; it is not a competitive leaderboard.
Does it work on a phone?
Tap the bolts directly. Each color also has a letter on the nut so that color is not the only cue. Keyboard users can Tab between bolts and press Enter or Space. On desktop, F toggles fullscreen when supported.
Where is my saved game?
The current board is stored locally on this device, separately for practice, challenge and each daily date. Private browsing, blocked storage or clearing browser data can remove it. Undo history starts fresh after a reload.