Masyu is a puzzle where you will draw a loop that passes through all the white and black circles. Their rules are a little bit complicated but once you get the hang of it, you can solve it quickly. It is popular amongst children. 

1. Make a single loop with lines passing through the centers of cells, horizontally or vertically. The loop never crosses itself, branches off, or goes through the same cell twice.

  1. Lines must pass through all cells with black and white circles. 
  2. Lines passing through white circles must pass straight through its cell, and make a right-angled turn in at least one of the cells next to the white circle.
  3. Lines passing through black circles must make a right-angled turn in its cell, then it must go straight through the next cell (till the middle of the second cell) on both sides.

Hints & Tips
Remember, with the white circles you go straight and with the black circles you make a turn. With some puzzles you can sketch your path before completing your loop. In the partially complete puzzle, the center black circle’s path does not go down because it would cross the path below so it must go up. 

One unit comes with 30 puzzles with 60 pieces of paper (Two sheets of paper per puzzle so that you can enjoy it twice!).



Go to the official Nikoli website for rules of Masyu


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