Masyu - PuzzleMonster

Masyu is a wordless loop puzzle. Draw one closed path through every pearl on the grid, never crossing itself and never branching. The pearls set the rules: the loop runs straight through each white pearl and turns just before or after it, and the loop turns on each black pearl and runs straight on both sides. Every puzzle has one solution and can be solved by logic alone, so there is never any guessing.

Features:
• Drag from cell to cell to draw the loop, and keep dragging for a longer path
• Start a drag along a line to erase a run, or tap a line to remove it. No modes to switch
• Hold a line to mark it with an × where the loop cannot go
• Pearls turn green when their rule is met and red when your loop breaks it
• Undo takes back your last stroke or mark with one tap
• Three grid sizes: 5x5 Easy, 6x6 Medium, 7x7 Hard
• Endless generated puzzles, free to play
• Unfinished puzzles are saved, shown on the menu with their time, and resumed with one tap
• Stats, best times and streak tracking
• Light and dark themes and large text support
• Optional haptics
• Plays fully offline
• No third-party ads, only occasional suggestions for other PuzzleMonster games

Calm, elegant and deeply satisfying. If you like Slitherlink, Hashi or Sudoku, Masyu could be your next obsession.