Masyu [MASY-3-008P]
Example
Masyu Puzzle Archive 
Similar Puzzle Books
1000 Loop Logic Puzzles – Collection I
US, CA; UK, DE, FR, ES, IT, other
Puzzles in this book: Masyu, Country Road, Kanjo, Koburin, Every Second Turn, Double Back, Geradeweg, Scrin, Balance Loop, and Entry Exit.
