Controls at a glance
About this game
Minesweeper asks you to distinguish safe squares from mines using the numbers on the border of the revealed area. NoCharge removes the countdown, but a later incorrect reveal can still end the board.
Reveal every non-mine cell to win. Revealing a mine loses; flagging all mines without uncovering the remaining safe cells is not enough. The first reveal is protected from mines. The presets are Beginner 9×9 with 10 mines, Intermediate 16×16 with 40, and Expert 16×30 with 99.
A revealed number counts adjacent mines, including diagonals. A zero expands the connected safe area. Toggle Flag mode or use F on the focused cell to mark a suspected mine; flagged squares are protected from ordinary reveals.
For example, a 1 with exactly one still-covered neighbor identifies that neighbor as a mine. Once its one mine is correctly flagged, the other covered neighbors are safe. A chord opens unflagged neighbors when the surrounding flag count equals the number. The chord checks the count, not whether your flags are correct: a wrong flag can leave a real mine unflagged and cause a loss.
The persistent metrics are completed clears and the fastest winning time. Elapsed play time is recorded after a win, not shown as a countdown or used to force a move. A failed board does not add a win.
Work from numbered boundaries, compare neighboring clues, and flag deductions rather than guesses. When a deduction is unavailable, the first-click guarantee does not protect later guesses. Chording is a shortcut for applying known information, not a hint that verifies flags.
nocharge:minesweeper:games-won and nocharge:minesweeper:best-time hold your records. nocharge:pref:minesweeper-last-size remembers the selected preset. Mines, revealed cells, flags, and an unfinished timer are not restored after closing the page. Records stay in this browser and are removable with Clear game data.
Player notes
Original articles about the systems and decisions inside Minesweeper.
Minesweeper
Why NoCharge's Minesweeper keeps the reveal/flag/chord loop but drops the timer, and why the safe-first-click guarantee is stated with its exact boundary.
Clear the field, one safe cell at a time. Classic minesweeper on 9×9, 16×16, or 16×30 boards with flags, chording, and a guaranteed-safe first click. Untimed: elapsed time is recorded only after a clear.
Yes. The game opens without an account, subscription, or cloud profile.
Reveal: Click or tap a hidden cell; Enter or Space reveals the focused cell. The first click is always safe. Flag: Toggle Flag mode, or press F on the focused cell, to mark a suspected mine. Chord: Double-click, or press Enter on a revealed number with the right number of flags, to reveal its neighbours. Move: Arrow keys move the board cursor; the focused cell is announced by row and column. Difficulty: Beginner 9×9 with 10 mines, Intermediate 16×16 with 40, Expert 16×30 with 99.
Any result or preference the game retains is stored in local storage in this browser. It does not synchronize between devices and can be removed with Clear game data.
The shared game shell pauses while the page is hidden and stops ambient audio. Returning removes the hidden-page pause, but a manual pause remains in place.
Use New game in the shared toolbar or settings panel. Restarting this game does not clear saved results from other games.
The listed session is 3–12 min. Check the complete guide for mode-specific timing, scoring, and end conditions.
Master mute silences effects and ambient audio. Effects on/off changes game effects only, and the volume control also adjusts an active ambient texture.
