River thresholds & blockers
River play is threshold work. Value bets need enough worse calls; bluff-catches need enough wins at the offered price; bluffs need enough folds. Blockers matter only through the combinations they remove. A useful bluff blocks hands that call and leaves hands that fold. A useful bluff-catcher often does the reverse: it leaves bluffs available.
- Price the decision.Calculate the required win or fold frequency before telling a story.
- Build value first.Count credible value combinations after every prior action.
- Find natural bluffs.Start with missed draws and hands too weak to check, then inspect removal.
- Locate the threshold.Compare neighboring hand classes; do not overfit one suit combination.
Worked example: a bluff-catch is a ratio
The river pot is 30bb and villain bets 20bb. Calling risks 20bb to win the final70bb, so the call needs about 29% equity. If their value region is 12 combinations, you need at least 4.8 bluff combinations to reach that threshold. Round counts are for the example, not a claim about a real pool. Holding the ace of a missed flush draw may be bad for calling because it removes bluffs; holding a card that blocks top value while leaving missed draws intact may be good. Say exactly which combinations move—“I have a blocker” is incomplete.