Minesweeper is a video game created by Curt Johnson. Fired released as part of the Microsoft Entertainment
Pack 1 in 1990, it was first included in the standard install of Windows 3.1 in 1992, replacing Reversi from
Windows 3.0. Microsoft Minesweeper was included without major changes in all subsequent
Windows releases
until Window Vista, at which time an updated version by Oberon Media replaced it.
The goal of Minesweeper is to uncover all the squares on a grid that do not contain mines without being "blown
up" by clicking on a square with a mine underneath. The location of most mines is discovered through a logical
process, but some require guessing, usually a 50-50 chance of being correct. Clicking on the game board
will reveal what is hidden underneath the chosen square or squares (a large number of blank squares[bordering
0 mines] may be revealed in one go if they are adjacent to each other). Some squares are blank while others
contain numbers (from 1 to 8), with each number being the number of mines adjacent to the uncovered square.
To help the player avoid hitting a mine, the location of a suspected mine can be marked by flagging it with the
right mouse button; however, if a player is unsure if a square is safe or not, they can tag it with a question mark
(?). The game is won once all blank or numbered squares have been uncovered by the player without hitting a
mine.