Masyu Learning Center
Everything we’ve written about Masyu, organised by topic. New to the puzzle? Follow the learning path. Looking for something specific? Jump to a topic.
The learning path
From your first puzzle to expert solving, in order.
1 · How to play →
The three rules, with pictures and a worked example.
2 · Beginner’s guide →
A five-step routine and your first week of puzzles.
3 · Strategy overview →
The 15 techniques that solve almost every puzzle.
4 · Loop logic →
Dead ends, forced lines and premature loops.
5 · Hard puzzles →
What-if chains for when patterns run out.
6 · Speed-solving →
Scan faster, draw faster, think faster.
Masyu Rules
Every rule of Masyu explained in depth, with legal and illegal examples. Start with the hub: How to Play Masyu.
Beginner’s guide →
A gentle learning path: what to learn first, a five-step routine and your first week of puzzles.
Black pearl rules →
The turning rule in detail: arm length, edge positions, shared arms and black–white interactions.
Common mistakes →
The ten errors solvers make most often, with diagrams showing what goes wrong and how to fix it.
White pearl rules →
Straight through, turn next door — every valid and invalid case, edges, corners and pairs.
Masyu Strategy
Solving techniques from first patterns to expert contradiction chains. Start with the hub: Masyu Strategy & Techniques.
Black pearl techniques →
Nine patterns built on black pearls — from corner openers to diagonal-white contradictions.
Solving hard puzzles →
What-if chains, contradictions and both-ways deductions — logic for when patterns run out.
Loop logic →
Dead ends, forced lines and premature loops — the techniques that finish the empty regions.
Parity & crossings →
The even-crossing rule, cuts, sealed regions and checkerboard colouring, explained simply.
Speed-solving tips →
Scanning order, pattern recognition, faster input and a practice plan to cut your times.
White pearl techniques →
Edges, pairs, rows of three and the far-turn rule — how white pearls force the loop.
Play by Difficulty
Curated Easy, Medium and Hard Masyu with advice for each level. Start with the hub: Masyu Puzzle Library.
Masyu In Depth
The mathematics, variants and craft behind Masyu — and how to teach it.
Is Masyu good for your brain? →
The thinking skills Masyu exercises — and an honest look at what puzzles can and can’t do.
Masyu for teachers →
A 45-minute lesson plan, objectives, worksheets, differentiation and maths extensions.
Masyu for kids →
A parent’s guide: when to start, how to explain the rules and which puzzles to use.
How to make Masyu puzzles →
A setter’s guide: two construction methods, uniqueness, difficulty, elegance and testing.
Masyu and mathematics →
Grid graphs, even cycles, the Jordan curve theorem and why Masyu is NP-complete.
Masyu variants →
Gray pearls, wrap-around grids, regions and hexagons — how each twist changes the logic.
Masyu vs. Other Puzzles
How Masyu relates to Slitherlink, Sudoku and other logic puzzles. Start with the hub: Masyu vs. Other Loop Puzzles.