マインスイーパー
数字をヒントに、すべての地雷を見つけ出せ！
長押しまたは旗モードで地雷をマーク。数字は周囲 8 マスの地雷数。
How to Play Minesweeper
Minesweeper is the classic logic deduction game. Mines hide under the grid; revealing a safe square shows a number telling you how many mines touch that square (including diagonals). Use the clues to reason out where the mines are: reveal every safe square to win, but click a mine and it's game over. Right-click (or enable Flag mode on mobile) to mark suspected mines. Your first click is always safe — mines are only placed afterwards, and never in the 3×3 area you opened.
Minesweeper Tips
- The number is the count: a square's number equals mines in its eight neighbors — start reasoning from the higher numbers.
- Use subtraction: if a square's number equals its count of unopened neighbors, all of those neighbors are mines — flag them.
- Learn patterns: the 1-2-1 pattern along an edge means the squares diagonal to the two 1s are mines. Memorizing patterns makes you much faster.
The Office Worker's Favorite Logic Puzzle
Minesweeper's deduction rules were born in the early-1980s home-computer scene, but the game entered history when Robert Donner and Curt Johnson's version shipped with Microsoft Windows in 1990. Bundled on hundreds of millions of office PCs, it quietly became one of the most-played games on Earth — and a masterclass in pure inference, since every number on the board is a small promise about the eight squares around it.
Good play is not about luck but about reading those promises: a "1" touching exactly one hidden cell is a guarantee, not a hint. Confident pattern recognition lets you clear whole boards without a single guess, and the timer adds just enough pressure to make a clean, fast clear genuinely satisfying. Decades on, it remains the gold standard for a five-minute logic workout.
よくある質問
How do I play Minesweeper?
Click a square to reveal it. Numbers show how many mines are in the eight surrounding squares. Reveal all non-mine squares to win; right-click or Flag mode to mark suspects.
Can my first click hit a mine?
Never. Mines are placed only after your first click, and the 3×3 area around it is guaranteed mine-free.
What do the number colors mean?
Each number has its own color (1 blue, 2 green, 3 red, and so on) so you can read the board at a glance.
How do I flag on mobile?
Tap the '🚩 Flag mode' button: while it's on, tapping a square toggles a flag; turn it off to reveal squares again.
Is there a time limit in Minesweeper?
No — the clock only measures how long you take, and it can never make you lose. Since safety comes from checking every number carefully, beginners should ignore the timer completely; speed is a by-product of pattern recognition, never the other way around.
How can I stop needing luck in Minesweeper?
Think in patterns rather than single squares: sequences like 1-2-1 or 1-2-2-1 along a wall have fixed solutions you can learn once and reuse forever. Before flagging, ask which cell every surrounding number agrees on — squares confirmed safe by all their neighbors are the ones worth opening.