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: Buddy System (originally on the US round for the 2016 WPF Puzzle Grand Prix)
Author/Opus: This is the 202nd puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Variation of Pentominous rules. Some borders between pentominoes are already drawn.
Answer String: Enter the letter associated with the pentomino occupying each cell in the marked rows from left to right, separating the groups with a comma. Use CAPITAL LETTERS!
Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00
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.