Available on
iOS
Nodelock
Rotate tiles to light up a circuit. One solution, always. Never a guess.
Turn tiles until every wire meets its neighbour and the whole grid lights up from one amber source.
Key Features
What makes Nodelock great
Never a guess
Every board is solvable by pure deduction and has exactly one solution. Boards that would force a guess are rejected before they ship.
A daily everyone shares
One board per day, identical worldwide, with a streak — plus a clean streak for hint-free solves. The archive replays any past date.
Rewarded-only ads, never on the board
Hints are opt-in, there is never a banner over the grid, and one small Pro unlock removes ads for good.
Ready to try Nodelock?
Rotate tiles to light up a circuit. One solution, always. Never a guess.