I noticed that in row3 we already have three O’s in a row at columns 2, 3, and 4. By playing in column 5, our piece would land on row4, setting up a powerful threat: on our next turn if column 5 is not blocked by the opponent, we can drop another piece in column 5 to complete a horizontal connect‐four in row3. This move forces our opponent into a defensive position and sets us up for a winning opportunity in the following move. Therefore, I choose column 5.