Safe to reveal
The cell is safe in every mine placement consistent with the visible clues and flags you entered. Reveal it in your game, then enter the actual clue that appears.
Enter your visible board to find the next guaranteed safe move or mine—and see the logic behind it.
1. Choose a cell state. Then tap the matching cells on your board. Keyboard: 0–8 for clues, F for flag, X for covered.
2. Recreate the visible cells. Leave everything else covered.
Guaranteed means guaranteed. If the visible clues do not force a move, the solver says so instead of guessing.
Every move can be found with logic. No 50/50 required.
The cell is safe in every mine placement consistent with the visible clues and flags you entered. Reveal it in your game, then enter the actual clue that appears.
Every consistent placement puts a mine in that cell. Mark it as a flag; do not reveal it.
A “No guaranteed move found” result means the implemented deterministic rules cannot force a move from the current input. It does not prove that guessing is the only possible strategy.
At least one clue, flag, or covered-cell relationship is inconsistent. Compare the entered area with your game before asking for another move.
Each revealed number becomes a constraint: the adjacent unknown cells must contain the clue number minus any adjacent flags. A direct constraint can make all remaining cells safe or make all of them mines. When two clue groups overlap and one unknown-cell set is contained in the other, subtracting the smaller constraint can isolate another forced result.
The solver returns one proof-backed move at a time. It does not inspect hidden cells, upload the board, calculate a probability, or turn a likely move into a guarantee.
If no certain move follows from the visible clues, the answer says so. This version does not estimate odds or recommend a guess.
Read the Minesweeper pattern guides to see how each structured proof works on a real board.
Today’s No-Guess Minesweeper is generated ahead of time and replayed by the same deterministic solver before publication.