### Slitherlink (Even Rows/Columns) by John Bulten

PDF

or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)

Theme: Clock

Author/Opus: This is the 74th puzzle from our contributing puzzlemaster John Bulten.

Rules: Standard Slitherlink rules. Also, an even number of cells in each row and in each column must be inside the loop.

Difficulty: 3.5 stars

Time Standards (highlight to view): Grandmaster = 3:45, Master = 5:00, Expert = 10:00

Solution: PDF; a solution video is also available here.

Note: Follow this link for classic Slitherlink and this link for Slitherlink variations. If you are new to this puzzle type, here are our easiest Slitherlink puzzles to get started on. More Slitherlink puzzles can be found in The Art of Puzzles, Slitherlink and Variations, and our beginner-friendly book Logic Puzzles 101.

• Hakan Altay says:

My solution in this link is also correct, isn’t it?
What am I missing?
Have a good day:)

• drsudoku says:

This puzzle is an “Even Rows/Columns” variation where the loop must contain an even number of cells in each row and column. You have several rows (1, 3, 4, 5) and columns (3, 7) that have an odd number of cells inside the loop.

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