Original Post
Because of a similar-named thread in the lounge, I've had a flash of insight and invented a variation on the Minesweeper game. Tiles are either walked or unwalked, and some contain hidden mines. The objective is to walk all tiles without mines before the time runs out. By clicking on an unwalked tile, it becomes walked, and all adjacent mines appear as red dots: they will fade away over the course of 1 second. The difficulty is now remembering where mines have been revealed, instead of determining where they are based on numbers. I'm pretty sure this has already been invented. Has it?