Araf (Different Neighbors) by Serkan Yürekli
or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a shading mode.)
Theme: Rooms
Author/Opus: This is the 292nd puzzle from our managing editor Serkan Yürekli.
Rules: Standard Araf rules. Also, no two regions with the same size can share an edge. (Note: this is the same rule as in Fillomino puzzles where no equal size polyominoes can touch.)
Difficulty: 4.5 stars
Time Standards (highlight to view): Grandmaster = 9:15, Master = 16:00, Expert = 32:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for more Araf puzzles on this website. If you are new to this puzzle type, here are our easiest Araf Puzzles to get started on. More Araf puzzles can be found in the ebook Araf by Serkan Yürekli.