How to Play Masyu
Draw a single closed loop passing through all circles. The loop must go straight through white circles and turn at black circles.
Try it now — Easy 7x7 →The Rules
- Draw a single closed loop passing through all circles
- At white circles the loop must go straight through, and must turn in at least one of the two adjacent segments
- At black circles the loop must turn (90°), and must go straight for at least one cell in both adjacent directions
- The loop cannot cross itself or branch
Available in 3 sizes (5x5, 7x7, 10x10) and 3 difficulty levels (easy, normal, hard).
See It in Action
Draw a single loop through every circle — go straight through white circles, turn at black circles
How to Play
- Mark forced straight segments through white circles and forced turns at black circles
- Extend from forced segments — if a line can only exit a cell in one direction, that direction is fixed
- Avoid creating small closed loops before visiting all circles
- Use unvisited areas to guide where the loop must travel to complete the circuit
Pro Tips
A black circle in a corner has only one valid turn shape — place it immediately
Two adjacent black circles share a straight segment between them — that segment is forced
White circles force straight segments which often create cascading deductions through the grid
Frequently Asked Questions
What is Masyu?
Masyu is a loop puzzle. Draw one closed loop through all circles. At white circles the loop must go straight and turn in at least one adjacent cell. At black circles the loop must turn and go straight in both adjacent cells.
Choose Your Challenge
Start with easy to learn the rules, then progress to harder difficulties.