It also has a glaring wart in its API because of Minesweeper needing to allow the first click before deciding the layout of the puzzle.

I've sometimes thought of adding a puzzle to this collection but I would actually rather refactor everything to remove that wart. It would involve turning Minesweeper into a game with a foyer, but probably worth doing?

Also, I thought the modern Windows version of minesweeper did the same first-click-is-free logic?