Playing in column 4 gives me three pieces in the column (rows 2, 4, and 5). Even though they're not consecutive due to the X at row 3, this provides the best foundation for a potential vertical win. If I can later play at positions (4,1) and (4,0), I would have five pieces in the column, guaranteeing a connect four despite the interruption. This move offers the strongest strategic position compared to the alternatives.