Tic-Tic-Tic goes the clock-clock-clock
Assume that you are playing a tic-tac-toe game with an opponent. You play as while your opponent plays as .
On which place should you place your next move so that you will lose the next turn regardless of where your opponent's next move is?
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1 solution
O wants to end the game quickly whereas X wants to keep the game going in the longest manner. So, if O marks on 1,3 or 4, then X would place on 2, so the game is not yet over.
But, if O marks on 2, then X should have to mark on 1,3 or 4. And he wins if he place on either of these places. So, the game gets over in only 1 step which is desired by O.
So, the answer is 2 .