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Loop
Draw one closed loop that satisfies every numbered clue.
How to play
- Draw a single continuous loop along the grid edges.
- Each numbered cell tells you how many of its four edges the loop uses.
- The loop never crosses, branches, or leaves a loose end.
Controls
- Tap an edge to add or remove a loop segment.
Techniques
Start at 0s and 3s
A 0 means X all four edges. A 3 next to a 0, or two 3s side by side, force most of their edges immediately — the classic opening.
Corners are constrained
A 3 in a corner uses both border edges; a 1 in a corner uses neither. Corner clues give free progress.
Follow the line
Every dot the loop visits has exactly two edges. When a line enters a dot with only one way out, it must take it — chains of forced moves close whole sections.
Example
┌─┐ │3│ · ·
A “3” cell uses exactly 3 of its 4 surrounding edges.
Tip · 0 and 3 clues and the grid corners are the safest places to start.
Play Loop →