Serkan Yürekli’s warm-up puzzle should show you how to handle regions with limited options, particularly those that are one-unit wide snakes often with clear tetromino shapes inside.

PDF

or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a shading mode and a mode to mark edges with an X.)

Theme: Profiles

Author/Opus: This is the 450th puzzle from our managing editor Serkan Yürekli.

Rules: Standard LITS rules.

Difficulty: 1 star

Time Standards (highlight to view): Grandmaster = 0:25, Master = 0:45, Expert = 1:30

Solution: PDF and solving animation.

Note: Follow this link for more variations of LITS and this link for classic LITS. If you are new to this puzzle type, here are our easiest LITS to get started on. More LITS puzzles can be found in these books in our e-store.

Note 2: Comments on the blog are great! For a more interactive discussion, please also consider using our week-0-discussion thread on the GMPuzzles Discord. If you are not yet part of this Discord community, use this link.