or solve online (using our beta test of Penpa-Edit tools).
Theme: Tightly Packed
Author/Opus: This is the 387th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Place the twelve pentominoes into the grid, rotations and reflections allowed. Pentominoes cannot cover the numbered cells, and different pentomino shapes cannot be placed in adjacent cells that share an edge or corner. Numbered cells indicate how many of the surrounding cells (including diagonally adjacent cells) contain parts of the pentominoes.
Difficulty: 3.5 stars
Time Standards (highlight to view): Grandmaster = 4:45, Master = 9:00, Expert = 18:00
Note: Follow this link for classic Minesweeper puzzles on this website and this link for variations on Minesweeper puzzles. If you are new to this puzzle type, here are our easiest Minesweeper Puzzles to get started on. More Minesweeper puzzles can be found in The Art of Puzzles 2.