Pentominous (Borders) by Grant Fikes
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 letter entry mode.)
Theme: Dynamite Walls
Author/Opus: This is the 320th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Variation of Pentominous rules. Some borders between pentominoes are already drawn.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 3:30, Master = 5:45, Expert = 11:30
Solution: PDF
Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on. More Pentominous puzzles can be found in the Plenty o’ Pentominous series by Grant Fikes and Murat Can Tonta and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
Excellent puzzle, thank you!
Oh, that logic in the bottom middle. Mathgrant is so pesky. 🙂
10.16 Mins to solve this one. It will be great to watch the solution video for this puzzle.