Minedrift

Minesweeper on a conveyor. Fresh ground arrives at the top and drifts toward you; you flag and open at the bottom, where resolved rows shear away and put time back on the clock. Never a forced guess — every board is proven solvable before you are shown it.

or play Classic 8 wide, standard clock Deep denser ground Narrow 6 wide, faster

Full boards, and today's Blitz →

How it plays

• One tap flags. A second tap opens. Inverted from the desktop game on purpose — flagging is what you do most, and opening should take two deliberate taps so a fat finger cannot kill you.
• Tap a number to chord it once its flags match: every unflagged neighbour opens at once. This is how experts play, and it is free.
• Open a cell with no neighbouring mines and it cascades — sometimes far past the bottom of the window, so the next few rows arrive already clear.
• Resolve the oldest rows and they shear away, which is what puts time back on the clock. You never target the shear; it happens because you cleared around it.
• Undo takes back a flag, and only a flag. An undoable reveal would be a free mine detector.

Never a forced guess — and where that stops

• Every board is certified before you see it: a complete constraint solver plays it as an ideal logician would, and the ground is redrawn until it can descend the whole way without ever being stuck.
• That is a proof about a fixed number of rows. Clear them all and the run ends — you cleared the drift. It does not drift on into ground nothing has proven.
• You can still choose to gamble. Under a clock, punting a one-in-three beats spending three seconds deriving it — but every death is then your own.
• A wrong flag is not a stall. It is caught as it reaches the shear edge, corrected in place, and costs you time.
• Scores are checked by replaying your taps on the server, so a leaderboard is what happened.