Minesweeper is a browser puzzle about evidence. The board starts covered, the first reveal is safe, and every number tells you how many mines touch that square, including diagonals. The faster you treat numbers as clues instead of decorations, the less you need to guess.
Start from the open starter zone. After the first safe reveal, look for numbers on the edge of the cleared area. These edge numbers are where the puzzle begins because they touch both known safe space and covered cells. A number in the middle of a clear area is already solved; a number beside covered cells still has work to do.
A 1 touching only one covered cell proves that covered cell is a mine. Flag it with Flag mode, right-click, or F. Once that mine is flagged, any other covered cells touching the same 1 are safe if the 1 has no more mine count left. This flag-then-reveal pattern is the basic Minesweeper loop.
Do the same math with larger numbers. A 2 touching exactly two covered cells means both are mines. A 3 touching exactly three covered cells means all three are mines. The number is not asking you to guess which one is dangerous when the count and covered cells match. It is telling you the full set.
The reverse pattern is just as useful. If a number already touches enough flagged mines, the other covered cells around it are safe. For example, a 2 with two flagged neighbors has no mine count left. Any remaining covered cells touching that 2 can be revealed. This is often where the board opens up after a few careful flags.
Do not flag cells just because they feel risky. A flag should come from a number clue that proves the cell must be a mine. Extra flags can make the board harder to read because you start trusting guesses as if they were evidence. If you are unsure, leave the cell covered and work another edge.
Look for shared clues. Two adjacent numbers often describe some of the same covered cells. If a 1 and a 2 touch an overlapping group, compare what each number still needs. The difference between their counts can tell you which covered cell is safe or which one must be a mine. You do not need advanced notation for this; just ask which covered cells are shared and which are unique.
When the board stalls, scan for completed numbers. A number is completed when its mine count is already matched by flags. Those completed numbers can unlock safe reveals around them. Many boards feel stuck because the next move is not a new flag; it is revealing safe cells around a number you already solved.
Your best clear time saves on this device, but speed should come after accuracy. A fast wrong reveal ends the board. A slower, proven reveal can open a large area and save more time than guessing early. The best time usually improves when you learn to spot the basic patterns quickly, not when you click covered cells at random.
Try one board with this rule: no flag without proof. If a number touches exactly the same count of covered cells, flag those cells. If a number already has enough flagged mines, reveal the remaining covered neighbors. If neither pattern exists, move to another edge and collect more information.
For another grid puzzle that rewards disciplined scanning, try Word Search. If you want a slower shape-planning challenge after Minesweeper, switch to Block Puzzle and preserve an open lane for the next queue.