[This is a repost from our archives with new notes at the top (original post here): The first set of Masyu puzzles ends with a grid that almost has “twisted” symmetry meaning antisymmetry of white and black circles. Several less conventional steps are required to find the one true loop in this challenging Masyu.]
or solve online (using our beta test of Penpa-Edit tools in linex mode where left click+drag draws lines and right click marks X’s)
Theme: Almost Twisted! – Slightly imperfect, but more difficult as a result.
Estimated Difficulty*: 2.5 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:30, Expert = 5:00
Note: Follow this link for classic Masyu and this link for Masyu variations. If you are new to this puzzle type, here are our easiest Masyu to get started on. More Masyu puzzles can be found in The Art of Puzzles and in our beginner-friendly book Logic Puzzles 101.