The Puzzle Robot #22 – Pentomino Puddles
or solve online (using our beta test of Penpa-Edit tools in a composite mode for line/edge drawing)
Theme: Grandmaster Puzzles (GMP in the shapes)
Rules: Divide each of the three shapes into four pentominoes so that all 12 pentominoes are present exactly once across the three shapes. An inventory of pentominoes is given below the puzzle; rotations and reflections of these shapes are allowed.
Answer String: Enter the capital letters for the pentominoes sitting in each cell along the indicated long row. Enter as a single string of 14 characters.
Time Standards (highlight to view): Grandmaster = 2:30, Master = 5:30, Expert = 11:00
Solution: PDF
About 3:00 🙂 But I guessed some bits, and I was very lucky.