Loop The Loop: Logic Puzzle

One loop. Every number satisfied. That's the whole game. Loop the Loop is Slitherlink — the classic Japanese pencil puzzle, rebuilt for your phone. Connect the dots into a single closed loop that never crosses or branches. Each number tells you exactly how many of its four sides the loop uses. A 3 needs three. A 0 needs none. Everything else you work out by pure deduction. No guessing. Ever. Every board is generated on your device with a guaranteed unique solution, then graded by the hardest technique needed to crack it — edge counting, dot degree, corner rules, chain logic, parity, contradiction. Any puzzle that would force a guess is thrown away before you ever see it. If you're stuck, there is always a next move you can prove. LEARN IT IN A MINUTE • Short guided lessons that teach the rules by having you play them • Optional spoken narration, read by your device • Tap an edge to draw a line, tap again to mark it ×, or drag to sweep a whole run AN ENDLESS CAMPAIGN • Starts at a gentle 3×3 and grows to 9×9 • Seven difficulty bands: Tutorial, Easy, Medium, Tricky, Hard, Very Hard, Expert • Past level 130 the boards stop growing and the logic keeps sharpening — clues get sparser, deductions get deeper. It doesn't run out. • Up to three stars per level: solve clean, solve quick A DAILY PUZZLE • One board a day, the same board for every player in the world • Gentle on Monday, brutal by Sunday • Build a daily streak — and buy it back if you miss a day • No account, no sign-in, no server BUILT FOR ACTUAL PLAYING • Undo and redo, every move • Auto Check flags a wrong edge the moment you draw it — or switch it off and submit blind • Hints that name the next forced move instead of just handing you the answer • Pause the clock, reset the board, pick up exactly where you left off • Share a picture of your finished loop ACCESSIBILITY AND CONTROL • Colour-blind-safe result colours, with incorrect edges dashed • Sound and haptics, independently switchable • Turn off × marks if you only want lines • Turn off drag-to-draw if you only want taps Track levels solved, stars earned, your daily streak, and total time spent thinking. Puzzles are generated and solved entirely on your device, so the game works with no connection. Coins buy hints; you earn them by solving levels, by keeping your daily streak alive, and — if you want — by watching an optional rewarded ad. Nothing is locked behind one. Draw the loop.