1–9 place · N notes · ⌫ erase · arrows move · Ctrl+Z undo · H hint
Click or tap between two dots to draw a line. Finish a box and you draw again. Avoid drawing the third side of a box: your opponent gets to close it.
Click a column to drop a disc, or press 1–7.
Click to dig. Right-click, long-press or use flag mode to mark a mine. Click a number once all its mines are flagged to clear the squares around it.
Type letters on your keyboard or tap them. Enter starts a new word when a round ends.