Stackexchange iconStackexchangeSep 16, 2026 ~1 min source read

All for nothing!

You've beaten the easy board that you made for yourself in one click (it happened to be a 0 in the center). Or so it seemed, because you start falling, and you land in another similar-looking room with the same type of grid.

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Useful takeaways from this story.

You've beaten the easy board that you made for yourself in one click (it happened to be a 0 in the center).

Or so it seemed, because you start falling, and you land in another similar-looking room with the same type of grid.

Then, the center tile is randomly picked to be either a 8, 4, or 0 with equal probability.

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The useful part

You've beaten the easy board that you made for yourself in one click (it happened to be a 0 in the center). Or so it seemed, because you start falling, and you land in another similar-looking room with the same type of grid. Then, the center tile is randomly picked to be either a 8, 4, or 0 with equal probability.

How it works

  • The tiles you set must make the board have at least one valid mine configuration for any of the center tile options.
  • You do not know the mine count and cannot use mine count while solving the board.

Details worth keeping

The board can be any size as long as both dimensions are odd. All 8 of its surrounding tiles will start unrevealed. You must be able to solve the board no matter what the center tile is.

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