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Nuts and Bolts
Puzzle

Nuts and Bolts

Published byIronclad Arcade329 playsQuick play
Free · Runs in your browser · No sign-up
Quick answer

What is Nuts and Bolts?

Nuts and Bolts is a sorting puzzle played on 3D screws. Select a screw to lift its top nut, then choose a destination. A nut can land on an empty screw or on a nut of the same color, provided the destination has room. A level is solved when every occupied screw holds a full stack of one color. The challenge is to uncover buried colors without filling all your temporary space.

Updated

Key facts

Genre
Puzzle
Players
1 (single player)
Session length
Under 5 min
Platform
Web browser
Devices
Desktop, Tablet, Mobile
Price
Free
Sign-up
Not required

Preview

Nuts and Bolts - Screenshot 1Screenshot 1
Nuts and Bolts - Screenshot 2Screenshot 2
Nuts and Bolts - Screenshot 3Screenshot 3
Nuts and Bolts - Screenshot 4Screenshot 4

Publisher

Ironclad Arcade
@ironclad_arcade

Heavy metal vehicular combat, armored battles, and retro shoot-em-ups.

7Games
0Followers
3.6KPlays

This game is owned, managed and distributed by its creator. ZuZi.dev hosts and moderates it but does not edit it.

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Sort one accessible nut at a time

  1. Tap or click a screw with a nut on top, then a suitable destination. Only the top nut moves.
  2. Use an empty screw as a buffer while you uncover colors lower in another stack. Avoid filling every empty space before the remaining colors have a route.
  3. Finish each color in a full, uniform stack to complete the puzzle. If a move blocks progress, Undo restores the previous arrangement.

Tools that help without solving for you

  • Hint highlights a source nut and destination screw for a possible move. It does not move the nut automatically.
  • Add can unlock another screw; Reset starts the current puzzle again. You can change the difficulty track from the game controls.
  • Keyboard play is available: arrows choose a screw, Enter or Space selects it, U undoes, H shows a hint, A adds a screw, and R resets.

Nuts and Bolts FAQ

Can I put a nut on any screw?

Only on an empty screw or on a matching top nut, if there is space.

Can I move a buried nut?

No. Move the nuts above it first.

What completes a level?

Every occupied screw must contain a full stack of nuts all of one color.

What does Hint do?

It highlights a suggested source and destination; you still make the move.

Can I reverse a move?

Yes. Undo restores the previous arrangement while a level is in progress.

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