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Steampunk Screw Overhaul

A tough nut-and-bolt sorting puzzle — free to play.

How to play

1. Tap a bolt to lift its top nut, then tap another bolt to screw the nut on.

2. A nut only fits an empty bolt or a nut of the same colour.

3. Lock a bolt by stacking three nuts of one colour — locked bolts are done.

Why you'll like it

✦ 7 solver-verified tough levels in the Steampunk workshop

✦ Single-nut moves — the exact rule the solver proved solvable

✦ Chunky 3D-look hex nuts and threaded bolts, crisp on any screen

Ready?

Lock every bolt under target and top the daily board.