Theme: Clue Symmetry and Logic
Author/Opus: This is the 199th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Place all 12 pentominoes into the grid, rotations and reflections allowed. Pentominoes cannot cover the numbered cells, and they also cannot touch each other (not even diagonally). Numbered cells indicate how many of the surrounding cells (including diagonally adjacent cells) contain parts of pentominoes.
Answer String: Enter the length in cells of each of the shaded segments from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.
Time Standards (highlight to view): Grandmaster = 3:30, Master = 6:45, Expert = 13:30
Note: Follow this link for other puzzles involving Pentominoes.