Where is Minesweeper example? :-D
So except if you limit the game to having no cells with more then one neighbors with a mine, it won't work.
• All squares start off as unchecked boxes.
• Marked squares are partially-checked boxes.
• Revealed bombs (e.g. player lost, show the board) are fully checked.
• Uncovered squares are deleted, and a number is placed in the space as simple text.
You could absolutely argue the last point is cheating, but, meh, I feel it's within the spirit of the idea.
(Undecided on whether to use disabled checkboxes to mark the perimeter of the playing field; I'd have to try it and see what felt right.)
<input type="checkbox" />
<input type="checkbox" checked />
<input type="checkbox" indeterminate />
<input type="checkbox" disabled />
<input type="checkbox" disabled checked />
<input type="checkbox" disabled indeterminate />