1. Gravity Off Win by finding a threat sequence
But it’s difficult to capture this in an evaluation function
Focus on search optimizations like pruning the tree and move ordering

2. Handling Threats X O X X X O X O X Branching factor = 1
Order 1 Threats: X X O X
Order 2 Threats: O
Branching factor ≈ 3 X

3. Gravity On Win by being in a good position when the board fills up
As the board fills up, options become more limited
Focus on coming up with a good evaluation function

4. X O T
No one wants
to move here ?

5. Threat Map T T T T T Assuming no new threats develop, who wins?
Types of threats:
Critical
Non-critical
Special cases (useless/win threats) T T T T T
Turn: Blue
Turn: Red
Winner: Blue