What else is required next to a white pearl?

A turn in at least one adjacent cell along the path

What happens after turning at a black pearl?

The path goes straight for at least two cells each way

What is a commonly told story about the name?

It came from a misreading of the word for pearl

Why are black pearls near edges useful?

They force the loop to turn away from the edge

Masyu Quiz: Pearl Loop Puzzle Rules and Strategies

A Japanese puzzle publisher popularized this elegant logic grid where one closed loop must pass through scattered pearls, and this Masyu quiz teaches its rules and tricks. Play 10 interactive questions on single loops, white pearl rules, black pearl rules, no crossings, edge deductions, pearls in a row, Nikoli, the name's origin and solving strategies.

Start Masyu Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Goal
What must you draw in a Masyu puzzle?
Pearls
Which cells must the loop pass through?
White
What must the loop do at a white pearl?
WhiteTurn
What else is required next to a white pearl?
Black
What must the loop do at a black pearl?
BlackStraight
What happens after turning at a black pearl?
Cross
Can the loop cross or branch?
Publisher
Which Japanese company popularized Masyu?
Name
What is a commonly told story about the name?
Edge
Why are black pearls near edges useful?

Explanations: answer key for all 10 questions

Q1: What must you draw in a Masyu puzzle?
Answer: A single closed loop
It passes through cell centers.
Q2: Which cells must the loop pass through?
Answer: All cells with pearls
Other cells are optional.
Q3: What must the loop do at a white pearl?
Answer: Go straight through it
It turns in a neighboring cell.
Q4: What else is required next to a white pearl?
Answer: A turn in at least one adjacent cell along the path
This prevents long straight runs.
Q5: What must the loop do at a black pearl?
Answer: Turn on it
It is a corner of the loop.
Q6: What happens after turning at a black pearl?
Answer: The path goes straight for at least two cells each way
This is a key deduction.
Q7: Can the loop cross or branch?
Answer: No
It is one simple loop.
Q8: Which Japanese company popularized Masyu?
Answer: Nikoli
Nikoli also popularized Sudoku.
Q9: What is a commonly told story about the name?
Answer: It came from a misreading of the word for pearl
The intended word was shinju.
Q10: Why are black pearls near edges useful?
Answer: They force the loop to turn away from the edge
There is no room to extend outward.

Masyu Quiz – Pearl Loop Puzzle Rules and Strategies

Masyu is a logic puzzle popularized by the Japanese publisher Nikoli. The goal is to draw a single closed loop through the centers of grid cells so it passes through every pearl, without crossing or branching.

At a white pearl the loop must go straight through, and it must turn in at least one of the cells just before or after. At a black pearl the loop must turn, and then travel straight for at least two cells in both directions.

Black pearls near edges force the loop away from the edge, giving easy starting deductions. The name is often said to come from a misreading of shinju, the Japanese word for pearl.

What This Quiz Teaches

Puzzle fans will enjoy these questions.

What the goal is
How white pearls work
How black pearls work
Which strategies help
Where the puzzle came from

Did You Know?

Not every cell needs to be visited.
Puzzles have a unique solution.
Marking impossible lines helps.
Masyu is also called Pearl Puzzle.
Larger grids can take an hour or more.