[This is a repost from our archives with new notes at the top (original post here): One way to place tension into a Fillomino grid is to have large and small values playing together and potentially competing for space. The repeating values around the central diamond in this Fillomino sets up a lot of the logic for the puzzle’s solution.]

PDF

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 number entry mode.)

Theme: Rough Diamond, or Diamond in the Rough?

Rules: Standard Fillomino rules.

Estimated Difficulty*: 2.5 stars

Time Standards (highlight to view): Grandmaster = 2:30, Master = 3:45, Expert = 7:30

Solution: PDF

Note: Follow this link for other classic Fillomino and this link for more variations on Fillomino puzzles. If you are new to this puzzle type, here are our easiest Fillomino puzzles to get started on.