Slitherlink

New to the format? The full rules take two minutes to learn: read the step-by-step guide with a worked example on the how to play slitherlink puzzles page, then come back for today’s puzzle.

• Zeros are free edges crossed out. Every edge touching a 0 is definitively not part of the loop; those bans feed every other deduction around them.
• A 3 corner pins three edges at once. Any 3 in a grid corner, or against the border, forces its two border edges plus one more; look for these before anything else.
• Track the path ends. Every loose end of a partial path must eventually connect to exactly one more edge; when a dot has one line and only one free edge left, that edge is forced.
• Never close a loop early. If drawing an edge would seal your path into a loop while other clues remain unsatisfied, that edge is wrong; crossing it out is often the strongest move on the board.
• Add numbers as you go. Keep a running count per clue cell: once a cell’s number is satisfied, all its remaining edges are banned, exactly like a zero.

Daily slitherlink puzzles grow through the week: Monday and Tuesday serve 5×5 grids that teach the patterns, Wednesday to Friday move to 7×7 with longer chains of forced edges, and the weekend brings 9×9 grids where the loop wanders across the whole board before closing.

Unlimited mode lets you choose the grid size directly: 5×5 easy slitherlink puzzles for pattern practice, 7×7 medium grids for the everyday sweet spot, and 9×9 hard grids for long deduction chains.

Every daily slitherlink puzzle can be printed as a clean sheet with the dot lattice, the number clues and the finished loop in the answer section at the bottom. Print today’s grid or any past date from the archive and solve it in pencil.

Print today’s slitherlink puzzles or pick any date from the archive to print an older puzzle.

One puzzle a day not enough? Unlimited slitherlink puzzles generates fresh grids on demand, and the daily archive holds every past puzzle since launch day.