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or solve online (using our beta test of Penpa-Edit tools; in default linex mode: left-click+drag draws line, right click marks X on edge)
Theme: Odd vs. Even
Author/Opus: This is the 103rd puzzle from our contributing puzzlemaster Ashish Kumar.
Rules: Draw a single loop in the grid which may cross itself orthogonally, but otherwise does not touch or retrace itself. The clue numbers to the left/right of the rows indicate the number of squares visited by the nearest section of the loop that travels horizontally in the rows. The clue numbers to the top/bottom of the columns indicate the number of squares visited by the nearest section of the loop that travels vertically in the columns.
Also, see this example:
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 2:30, Expert = 5:00
Solution: To be posted on our next puzzle post once live.
Note: Follow this link for other Round Trip puzzles. Some more Round Trip puzzles can be found in the book Loop Variety Collection by Ashish Kumar and Murat Can Tonta.
Previous Solution: “Empty Frame” Nanro by Grant Fikes: PDF and solving video.