Flop Analysis
On T65r we have a gutshot plus backdoor hearts and a decent equity share vs BU's range. With a draw-heavy hand and no made hand, checking is the standard way to start the hand and let BU c-bet.
After flop check-raise getting called, the 4s turn gives us a strong straight; solver prefers a big turn bet (≈1.2x pot) to maximize value from one-pair and draw-heavy holdings.
On T65r we have a gutshot plus backdoor hearts and a decent equity share vs BU's range. With a draw-heavy hand and no made hand, checking is the standard way to start the hand and let BU c-bet.
Facing a small c-bet on a very dynamic board, 87s is a strong candidate to check-raise. We have a lot of equity, and raising pressures BU's one-pair and draw-heavy holdings while setting up a big turn barrel. Solver likes mixing between a call and a larger raise (≈1.2x pot), but the chosen raise size is reasonable.
The 4s turn completes our straight on a board that now reads T-6-5-4. After flop check-raise getting called, BU still has plenty of one-pair and draw-heavy hands. Solver prefers a big turn bet (≈1.2x pot) to maximize value from those holdings and to make it expensive for them to continue with draws. Our 13BB bet is on the small side for this strength of hand and this board texture.