A simple minesweeper game that I wrote because it's one of my favourite games from childhood.
A game has 3 levels of difficulty, which can be chosen with buttons on top of the game board.
Easy: 9x9 board, 10 mines
Medium: 16x16 board, 40 mines
Hard: 24x24 board, 99 mines
Click to expose chosen square of the board, right-click to flag mine.
Working live demo: https://tomeklarysz.github.io/Minesweeper/