Tic-Tac-Toe (Sun vs Moon)
Click a square to place a symbol.
Key and pointer events run inside a timed update. finish_update closes the
update without rejection, and a separate render presents the board as a
canonical KTX2 image.
- Sun goes first.
- Moon goes second.
- Click anywhere after win/draw to reset.
- Press
Enter, Space, or R to reset.