Answer: Check - Incorrect!
Your hand: Final Board:
EXPLANATION: When both players check the turn, it's unlikely that either player has a King. When the Queen hits on the river, it's another good bluff card for you to bet from our opponents perspective. Since there are very few draws that have missed, and a draw is an extremely small portion of your opponents range, you want to get value from a 9 or a 6. It's important to squeeze thin value whenever you can in no-limit holdem.
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