The Minesweeper game consists of a group of squares where each square represents a region.
Each region either contains a mine or not. Your mission is to reveal (or "open") all the mine-free regions and mark the ones that contain mines.
You open the region by left-clicking it, and mark a region by shift-clicking. The key for determining whether a certain region contains a mine or not is that for every 3x3 grid (9 regions) of squares, the number written on the region in the center represents the number of mines in the 8 other surrounding regions.
So, when starting your game, your first few clicks will depend on your luck to find mine-free regions, but once you open a fair amount of regions, you can use logic to find the regions that contain mines.Good luck!