Slitherlink vs Slitherlink+

The Ultimate Number Loop Puzzle for Your Brain\! "Slitherlink" — also known as Fences, Takegaki, or Loop the Loop — is the definitive pencil puzzle that sharpens your logical thinking with numbers. Connect dots on a grid to draw a single closed loop. Numbers in cells tell you exactly how many sides of that cell are part of the loop. Simple rules, yet endlessly deep strategy. ■ Daily Brain Training Every puzzle demands careful deduction and logical reasoning. One puzzle a day to sharpen your focus and build analytical skills — start your intellectual habit today. ■ Relax and Think Deeply Play at your own pace with no time pressure. Enjoy a calm, focused puzzle experience perfect for unwinding. ■ 4 Difficulty Levels + Tutorial * Tutorial (3×3): Learn the basics step by step * Easy (4×4): Quick and fun for beginners * Normal (5×5): Satisfying daily brain workout * Hard (8×8): Challenge for experienced players * Very Hard (10×10): Ultimate test of logic ■ Solving Tips Visual tips teach key patterns. Beginners master fundamentals; experts advance their techniques. ■ Time Attack & Leaderboard Beat your best times and compete in daily challenges on the global leaderboard. ■ Clean & Intuitive Design High visibility grid, no distractions — pure puzzle enjoyment. Also known as: Number Loop, Loop Puzzle, Fences Puzzle. Start your Slitherlink journey today and train your brain every day\!

Slitherlink is a logic puzzle: draw one closed loop through a grid of cells. Each number says how many sides of that cell the loop runs along. Every puzzle has exactly one solution, and you can always find it by reasoning, without guessing. There are absolutely no ads and you can play offline. NOT JUST SQUARES Classic Slitherlink is played on squares. Here they are one grid among many: Honeycomb, Cairo pentagons, Kites, Diagonals, Snowflakes and Penrose tiles, with more on the way. PLAY YOUR WAY Four sizes from small to huge and three difficulties in every grid. Mark your favorites and let the game deal you a random one. UNLIMITED LEVELS Honeycomb is free, forever, and its levels never run out. Every other grid comes with free levels to try, and a single one-time purchase unlocks unlimited levels in it. HELP WITH THINKING Lines and clues color themselves as you progress. Parity shading lets you mark the inside and the outside of the loop, by hand or automatically. Wrong edges can be highlighted. Or switch it all off for the harder pen-and-paper look. SEE HOW YOU DID When you finish, see the median time of everyone who solved that kind of puzzle and where yours stands. Share it if you like, or turn the ranking off for a no-pressure game. --------------- Questions or problems? Please email, and you will get an answer. --------------- Slitherlink is also known as Loopy, Loop the Loop, Fences, Takegaki, Suriza and Dotty Dilemma. If Sudoku has gone stale, this is the next puzzle to learn.