Geradeweg by Prasanna Seshadri
This puzzle style was created by Robert Vollmert (Geradeweg roughly means “Straight Path” in English). More Geradeweg will be in our upcoming Loop Variety Collection 2.
or solve online (using our beta test of Penpa-Edit tools in default linex mode where left-click+drag draws line and right click marks X’s)
Theme: Knight Matrix
Author/Opus: This is the 248th puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Draw a single, non-intersecting loop that passes through all cells with circles; the loop may either go straight through or turn at each circle. If the loop goes straight through a circle, the number on that circle indicates the length of the straight segment. If the loop turns at a circle, the number on that circle indicates the length of both loop segments extending from that circle.
Also see this example:
Difficulty: 2.5 stars
Time Standards (highlight to view): Grandmaster = 2:30, Master = 4:30, Expert = 9:00
Solution: PDF and solving video.
Note: Follow this link for other Loop/Path puzzles. More Geradeweg puzzles are in the book Loop Variety Collection 2.