About this game
Campaign — 120 boards in nine chapters, from 5×5 with two mines up to 24×22. The first levels teach as you play: what a number means, what a flag is for, how to open all neighbours at once. Stars are given for speed and for finishing without hints.
Classic — three boards, as in the original: 9×9 with ten mines, 16×16 with forty, 30×16 with ninety-nine. Next to them, a custom board of any size and density.
Daily board — the same one for every player, new every day. Winning day after day builds a streak; results go to the leaderboards. Plus three quests a day and stats on everything you play.
A hint never opens the cell for you: it shows the numbers the move follows from and explains the conclusion in words.
No sign-up, no install. Under a hundred kilobytes, runs on a weak phone.
How to play
The goal is to open every cell except the mined ones. A number on an open cell says how many mines hide in its eight neighbours. If there are no mines around, the cell is empty, and such cells open in one batch.
The first move is always safe. After that it is comparison: if a 1 has a single closed neighbour left, that neighbour is a mine; if all of a number's mines are already flagged, the rest of its neighbours are clear. The whole game grows out of these two rules.
A flag is placed with a long press or the right mouse button. You can switch on flag mode — then an ordinary tap places a flag.
Tapping an open number that already has the right number of flags around it opens all the remaining neighbours at once. On a phone this is the main accelerator.
You will not have to guess on any board. If no move is in sight, “Hint” names the numbers it follows from and walks through the reasoning step by step.
On a computer: space — flag mode, R — restart, Esc — back, mouse wheel — zoom.