Araf (Different Neighbors) by Bram de Laat
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: Clue Symmetry and Logic
Author/Opus: This is the 5th puzzle from guest contributing Bram de Laat.
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.)
Answer String: Enter the number of cells in each connected group (between bold lines) in the marked rows.
Time Standards (highlight to view): Grandmaster = 5:00, Master = 10:00, Expert = 20:00
Solution: PDF
Note: Araf is a relatively new puzzle for us on GMPuzzles. Follow this link for other Araf. An example image for a “classic” Araf puzzle is here.
For some reason, I thought this was a Non-Consecutive Neighbours Araf, which made this impossible to solve.
13:11. Nice !