Is Connect Four solved?
Yes. With perfect play, the first player can force a win, but against casual opponents there is plenty of room for tactics.
Can discs be removed once placed?
No. Discs stay where they fall, which makes column control critical.
What is a double threat?
A position where you threaten to win in two different ways on your next turn.
Does going first matter?
Yes. The first player has a slight theoretical advantage.
How is this different from Tic Tac Toe?
The vertical gravity and larger grid create far more strategic depth.
