K♠5♠ CO vs BB, river on J♦ 8♠ 5♣ 9♠ 2♦, 80 bb
The spot
- You: CO
- Opponent: BB
- Your hand: K♠5♠
- Board: J♦ 8♠ 5♣ 9♠ 2♦
- Effective stack: 80 bb
- Pot: 17.5 bb
Population tendencies shape exploit windows in this high-EV branch.
Choose the strongest exploit-aware baseline.
See the answer
Best play: Check
Why
River J8 5 9 2; hero K-spade-5-spade made only bottom pair of fives, no flush (board shows 8-spade and 9-spade, hero adds two spades for four total, one short). In position versus BB this weak pair is a bluff‑catcher at best: betting gets called only by better and folds nothing worse of consequence, so checking back to see a cheap showdown is correct. There is no value to extract and no need to build a pot you will often lose.
Key idea
Bottom pair in position on the river is a check-back; you cannot value bet a hand that only beats bluffs.
Common mistake
Trying to bet bottom pair as value or protection on a static river where no draws remain.