Nuts & Bolts Puzzle
Nuts & Bolts Puzzle
Nuts & Bolts Puzzle is built around one clear goal - unscrew every bolt on a metal sheet so that all the parts they're holding in place fall away - but getting there takes real planning. Pieces are chained together, so loosening one bolt can swing a connected part into the path of another, blocking a hole you needed or freeing up one you didn't expect. Golden screws add another wrinkle, since they stay locked until you find and use a key on them first, and a running clock means you can't just methodically try every combination until something works. It's a spatial reasoning puzzle at heart, closer to a mechanical version of a sliding block puzzle than a typical match-three game, and it punishes acting before you've mapped out the consequences of a move. With dozens of levels that add more chains, more golden screws, and tighter time limits as you go, it holds onto that one-more-level pull without ever changing its core idea.
How to play Nuts & Bolts Puzzle
Objective
- Unscrew all the bolts on the board so every connected piece falls off, clearing the level before the timer runs out.
Controls
- Click or tap a bolt to start unscrewing it.
- Watch chained pieces swing as bolts loosen - they need to swing into an open hole, not get blocked by another part.
- Look for golden screws, which must be unlocked with a key found elsewhere on the board before they can be removed.
- Plan your unscrewing order carefully, since picking the wrong bolt first can trap other pieces with no valid moves left.
- Clear the whole board before time expires to complete the level and unlock the next one.
Tips and strategy
Look at the whole board before touching a single bolt, tracing which pieces are chained together and where each one will swing once it's loosened. Unscrew the bolts that free up empty holes first, since that gives later moves somewhere to land, rather than immediately going for the bolt that looks like the obvious first step. Keep track of any golden screws and the keys needed to unlock them early, so you're not stuck late in the level with a locked screw and nowhere else to go. If you hit a dead end with no legal moves left, most versions let you restart the level instantly - use that to test a different opening move rather than fighting through a board state you've already worked out won't finish.
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Frequently asked questions
What's the actual goal of Nuts & Bolts Puzzle?
You need to unscrew every bolt on the board so all the pieces they're holding in place fall away, clearing the level completely.
What are the golden screws for?
Golden screws are locked and can't be removed until you find and use a matching key elsewhere in the level, adding an extra step before you can clear them.
Is there a time limit?
Yes, most levels run on a countdown, so you need to work efficiently rather than testing every possible order of moves.
What happens if I get stuck with no moves left?
If the board reaches a dead end, you'll typically need to restart the level and try a different sequence of unscrewing bolts from the beginning.
Does the game get harder as you progress?
Yes, later levels add more interconnected chains, additional golden screws, and tighter timers, which makes planning ahead increasingly important.