Dr. Sudoku Prescribes #75 – Fillomino
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: Tornado
Rules: Standard Fillomino rules.
Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Start with the 6th row, followed by a comma, followed by the 10th column.
Time Standards (highlight to view): Grandmaster = 5:00, Master = 8:00, Expert = 16:00
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.
It seemed like an additional theme was a complete lack of unclued regions (which also means no “1” or “2” regions) until the very end of the puzzle, where you needed them to solve a last little riddle. It enjoyed seeing all those snug little fits locking together.
32 mins
Very tough puzzle.I had to obtain a lot of contradictions before i could proceed further which could have achieved by grandmasters with a bit of visualisation.I liked the way the last tiny bit filled .
03:49.
Well, I won’t repeat about the last step; that’s mentioned already. The solve was pretty smooth; most of the time it’s “this can expand here” (where “expand” generally means only one new cell), although I needed a few small bifurcations. The chain reaction is marvelous.
I’s compare the setup of the first half of this puzzle to setting up the pieces of a Rude Goldberg machine, and the second half to setting the device in motion. Very nice design/flow.
Pretty good logic throughout (and the ending was fun)