This is a minesweeper puzzle with a tetromino twist. The goal is to place mines in the grid, following a few constraints.
Rules:
- A number indicates how many adjacent (including diagonally adjacent) cells have mines in them.
- Mines cannot go in numbered cells.
- Mines must be grouped into tetromino shapes.
- Only one of each tetromino is used. Rotation but not reflection is allowed.
- Tetrominos may not touch orthogonally (on a side). They may touch diagonally.
A simple puzzle is below, with all the available tetrominos included for reference.
CSV:
,,,,,,,,
,,,,,,,,
,,3,,1,2,,2,
,0,,,,,,,2
,,,,3,,,,
,1,,,,,4,,5
,2,,6,,,,,5
,,,,,3,,,
,1,,,,,,,2
,,,,3,,,,
,,,,,,,,
Checkmark goes to the first solution to show a logical path.
I called this the "amphitheater" because I imagine the numbers around the edges as an audience, the numbers in the center as performers, and the number on the bottom as a stagehand. So they're in an amphitheater. Yes, I have great naming ideas. Thank you very much.