Tic-Tac-Toe, as shown in movie "War Games", is an "Unwinnable" game.
Since I realized that, it is an "Unwinnable" game, I have installed only the strongest (hardest) mode.
So, you cannot humourless tackle with the "Strongest ★Tic-Tac-Toe".
If you win this
"Strongest ★Tic-Tac-Toe", than, as a developer I will say you are an excellent player.
So, play it and experience this "Unwinnable" situation.
9Apps 4.9
