About 10×10 Masyu
A 10×10 Masyu grid has 100 cells. Your goal is the same at every size: draw a single closed loop through the centres of cells so that it passes through every pearl. Black pearls are corners with straight legs; white pearls are straight segments with a turn next to them. 10×10 boards are recommended for regular solvers who know the basic patterns and want a satisfying daily-sized challenge.
| Difficulty | Puzzles | Average pearls | Typical time |
|---|---|---|---|
| Easy | 150 | 33 | 5–10 min |
| Medium | 150 | 26 | 8–15 min |
| Hard | 150 | 23 | 12–25 min |
Fewer pearls usually means a harder puzzle: there are fewer starting points, and more of the loop has to be deduced from global rules. Times are a rough guide for an experienced solver.
Tips for 10×10 boards
- Track the free ends of your partial lines: two ends next to each other must not join unless that would complete the whole loop.
- A white pearl beside a line that already goes straight forces the turn onto the other side.
- When stuck, count the exits of a region — a closed loop must cross any boundary an even number of times.
New to these patterns? Read our Masyu strategy guide with 14 illustrated techniques, or go back to basics with how to play Masyu.