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• More reliable automatic crosses. • Clearer reading and easier grid navigation with TalkBack. • Improved accessible controls for lines and marks.
Loop logic puzzles: 100 free to start, daily challenges and offline play.
Slitherlink is a loop logic puzzle: use number clues to draw one continuous closed loop. Each clue tells you how many of the four edges around its cell belong to the loop. Connect the right edges without branches, crossings or loose ends. 1,200 PUZZLES TO EXPLORE • Play 900 Easy, Medium and Hard puzzles. • Unlock 300 distinct Expert puzzles with Premium. • Start with 100 free Easy puzzles. A one-time Premium purchase unlocks the full collection. LEARN, THEN SOLVE Clear rule explanations and guided practice help you learn how loop logic works. Use hints when you want a nudge, or undo a move to reconsider your next deduction. MAKE YOUR OWN NOTES Mark cells as inside or outside the loop. Optional automatic crosses mark edges ruled out by the clues; they are off by default and unavailable in Daily challenges. A PUZZLE FOR EVERY DAY Try a fresh Slitherlink challenge, track your statistics and achievements, choose a readable light or dark theme, and play offline. Start with a free Slitherlink puzzle and close your first loop.