Second game · iPhone · iOS 15+
Take the screw you need, not the one that fits.
One bin is open and it takes one colour. Every other screw you pull goes to the tray, and a full tray ends the level. The board keeps making you reach past the colour you want.
Coming to the App Store
What makes it hard
Twenty-two benches, and each one takes something away.
Bolted down for good. They cut arrow paths permanently.
A plate sits on another. The top one has to go first — so sooner or later you take a colour the bin is not asking for.
Two taps, and the first one only loosens it. Orange ring.
Teal floor plates carry arrows one direction only. The board decides which way things can leave.
Numbered plates leave in order. Their screws come off freely — the plate itself waits its turn.
Purple plates travel together, on a single move. This one pays you back for setting things up.
Three hundred levels, and the tray shrinks as they climb. The last benches run every rule at once.
Not a generator that hopes
Every level is provably solvable.
Boards are built backwards: an arrow is only ever placed where the board at that moment already leaves it a clear path, so the reverse of the placement order is always a valid solution. The screw colours are then dealt along that same order, which means a perfect run never needs the tray at all — the tray is the margin for being wrong, not a requirement.
All 300 are replayed automatically before they ship.
What it does not do
- No advertisements and no in-app purchases in this version.
- No tracking prompt and no advertising identifier.
- No account, no sign-in, no messaging.
It sends only anonymous gameplay events and crash reports, so broken levels and crashes can be fixed. The privacy page lists every one.
Stuck, or something went wrong?
The support page answers most of it.
Progress that did not move to a new phone, a tray that keeps jamming, a level that feels impossible — all of it is answered there, and what is not gets an email reply within three working days.