Simon Tatham’s minesweeper is the best minesweeper https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mines.html https://www.chiark.greenend.org.uk/~sgtath

Simon Tatham’s minesweeper is the best minesweeper https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mines.html https://www.chiark.greenend.org.uk/~sgtatham/puzzles/js/mine... « The first square you open is guaranteed to be safe, and (by default) you are guaranteed to be able to solve the whole grid by deduction rather than guesswork. »