9♣8♣ BTN vs BB, turn on K♠ 6♣ 2♥ T♣, 40 bb

Best play: Check

Why

On K‑6‑2 the T turn brings clubs and connectivity but is mostly a card the BB's range can use, while the K still favors no one decisively in a wide HU pot. With 9♣  wait — with 9♣ 8♣ you have no pair but a strong combo draw: a club flush draw (you hold two clubs, the 6♣ and T♣ are out) plus an open-ended straight draw, since a J or 7 completes T‑9‑8‑7 or J‑T‑9‑8. The BB has checked to you on the button, so there is no bet to face; checking back is correct because betting a no-pair draw here gets check‑raised and folds out the worse hands you dominate, whereas a free card lets you realize your large drawing equity and barrel good rivers.

Key idea

A big no-pair combo draw in position is often best checked back: you keep your equity, avoid a check‑raise, and retain the lead on barreling rivers.

Common mistake

Stabbing with the combo draw when checked to and getting blown off a 12-out hand by a check‑raise.