Avoid over-betting air on boards that favor the defender's range, especially when the turn completes multiple straights.
Checking is the preferred play here. While we have an equity advantage, this board texture hits the Big Blind's defending range very hard with many pairs and straight draws.
Note: Over-betting 1.5x pot with Ace-high is too aggressive; checking or using a small sizing (33%) better protects our range on this mid-connected board.
Betting is a viable mix now that we've picked up an open-ended straight draw, but our sizing remains problematic.
Note: The small 33% sizing on a turn that completes straights (6T, 56, JT) is ineffective; we should either check or use a larger size to maximize fold equity.
A clear fold on the river. The board has fully coordinated, and the BB's lead into us represents a range that has significantly improved.