Minesweeper Classic Online

Play classic Minesweeper free online in your browser. Features 3 difficulties, first-click safe opening, quick chord reveals, flag markers, and best time tracking.

How to Play Minesweeper

Minesweeper is a classic game of deductive logic. The board contains hidden mines distributed under a grid of closed tiles. Numbers indicate exactly how many mines are located in the 8 neighboring cells.

Your goal is to reveal all safe tiles without triggering a mine. Flag suspected mine locations with right-click or Flag Mode, and use the Chord shortcut to speed up clearance.

Deduction Tactics & Expert Patterns

  • First Click Guarantee: Your opening move is always 100% safe and automatically opens a cascade area.
  • The 1-2-1 Pattern: A 1-2-1 sequence against an unrevealed wall always places mines under the two 1s, leaving the middle cell safe.
  • Chord Speed Reveal: Once you have flagged all adjacent mines around a number, tap or click the number to instantly clear all remaining safe neighbors.
  • Corner Flags: Corners and isolated single numbers are the easiest starting anchors for safe deductions.

Frequently Asked Questions

How do I place flags on mobile phones and tablets?

On touchscreens, you can either toggle the 'Flag Mode' button below the board or perform a long-press on any closed tile to plant a flag.

What is a 'Chord' action and how do I perform it?

A Chord is a power shortcut: when an open numbered tile has the exact required number of flags placed around it, clicking or tapping that number will instantly uncover all remaining unflagged neighbors.

Can I lose on the very first click?

No! The board generates all mines only after your first click, guaranteeing that your first move and its surrounding cells are always completely safe.