Minesweeper Was Built to Teach You Right-Clicking

Every 90s kid remembers Minesweeper. I clicked my first mine on a Windows 95 machine in Mysuru. Decades later, I built a better version.

Robert Donner's Weekend Project

In 1989, Microsoft developer Robert Donner took a colleague's minefield game and rewrote it over a weekend. Microsoft included it in Windows 3.1 for a practical reason: they needed a fun way to teach users right-clicking, which was new in 1992. Left-click to reveal. Right-click to flag. The tutorial became the most successful game Microsoft ever shipped.

I clicked my first mine on a Windows 95 machine — same as every 90s kid with access to a computer. The game was so addictive that it was estimated to cost businesses billions in lost productivity (probably exaggerated, but I believe it). Bill Gates reportedly scored 4 seconds on Beginner and emailed Donner about it.

From Mouse Tutorial to Math Problem

Minesweeper's competitive scene emerged in the late 1990s. Today, the Expert world record (99 mines, 30×16 grid) is under 30 seconds. The mathematics of Minesweeper are so complex that the Clay Mathematics Institute linked solving it efficiently to a Millennium Prize problem — worth $1 million. A game that was built to teach right-clicking is connected to one of the hardest unsolved problems in mathematics. I love that.

Microsoft removed Minesweeper from the default Windows install in 2012, ending a 20-year run. Play Minesweeper free on Cliko Games with custom grid sizes, daily challenges, and 7 difficulty levels. If you like logic-based deduction, also try Dots & Boxes and Flag Zone.