Circuit Patchwork
Swap two circuit tiles to connect the battery at cell 1 to the lamp at cell 9. All nine pieces must belong to the lit route. Test when ready.
Bench repair lifts the center tile into a tray, leaving one empty socket. Only a neighboring tile may slide into that socket. Return the socket to the center and Seat tray before testing; plan electrical connections while preserving a route for the gap.
The lifted tray tile can turn; board tiles cannot.
How to play & accessibility
Swap two circuit tiles to connect the battery at cell 1 to the lamp at cell 9. All nine pieces must belong to the lit route. Test when ready.
Tap controls, or Tab then Enter/Space to activate every board cell and action. Arrow keys move where supported. R restarts. Z undoes in calm puzzles. Small numbers identify cells in row-major order. All controls are at least 44 pixels.
Source & original design
Compact original rules study inspired by the listed mechanic, not a full reproduction. New name, board layouts and CSS artwork; no source assets copied.
Source: Turn on the light - Jigsaw