Lanterns

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How to play

Place lanterns in the white cells. A lantern lights its own cell and its whole row and column, up to the nearest wall. Every white cell must end up lit, and no lantern may light another. A number on a wall says exactly how many lanterns sit beside it — above, below, left and right.

Tap a cell to place a lantern, again for a dot (no lantern here), and once more to clear it. Long-press (or right-click) goes the other way. Drag across open cells to dot them all at once. Lanterns that light each other, and numbers with too many lanterns, are marked straight away.

Shortcuts

Arrow keys move; L places a lantern, X a dot, 0 clears; Space cycles.
Z undoes, Y redoes, H asks for a hint.