J♦J♣ BTN vs BB, river on K♦ 8♠ 4♥ 3♦ A♣, 70 bb
The spot
- You: BTN
- Opponent: BB
- Your hand: J♦J♣
- Board: K♦ 8♠ 4♥ 3♦ A♣
- Effective stack: 70 bb
- Pot: 21.5 bb
Hero faces a polar river action after capped turn line.
What line avoids overbluffing while preserving value?
See the answer
Best play: Check
Why
Final board K 8 4 3 A (K♦ 8♠ 4♥ 3♦ A♣), two overcards to your pair and no flush completed. With J♦ J♣ you hold an underpair beneath both the king and the ace — your jacks beat only busted draws and air. A 40% 'thin value' bet is misapplied here: every worse hand folds and only Kx/Ax (which beat you) call, so you have no value target. The hand is a pure bluff‑catcher, so check and let it win at showdown against bluffs.
Key idea
Don't value-bet under two overcards: a hand that beats only air has no worse caller, so check.
Common mistake
Calling an underpair 'thin value' when both an ace and a king are on board — you only fold out worse and get called by better.