Minesweeper

Game Rules:

Left‑click: Reveal a cell.
Right‑click: Flag/unflag a cell as a mine.
Both‑click (Chord): Open adjacent hidden cells if flagged count matches the number.
Reveal all non‑mine cells to win.
Clicking a mine ends the game immediately.
“Mines” shows remaining bombs (total – flags).
Timer starts on first click and stops on win/lose.