Poker Puzzle Trainer Today’s spot →

River Bluffs With Blockers: Remove the Calls, Keep the Folds

River bluffs with blockers choose the bluffing hands by the cards they hold. A card that the calling hands need is a card the opponent cannot hold: they have fewer of those hands, so a call is less likely. The count is exact, combo by combo. A blocker can also remove hands that would fold, and it never changes the price: the bet still needs the folds its size asks for.

A♠5♠ after the spades missed

On the button, you bet the flop K♠ Q♣ 7♠ and the 3♦ turn, and the big blind called both. The 2♣ river misses the spades and the big blind checks for the third time. Check back, bet 33%, overbet 150% of the 35bb pot, or jam?

See the answer

What A♠5♠ removes from the big blind's hands on K♠ Q♣ 7♠ 3♦ 2♣:

Big blind's handsCombos without your cardsCombos with A♠5♠ in your hand
A‑K, top pair with the best kicker129
A‑Q, second pair with an ace129
two spades, missed flush draws among them5536

A 150% overbet needs 60% folds and a 33% bet needs 24.8%. The author's answer is the overbet: A♠5♠ has almost no showdown value, and the A♠ removes some of the A‑K and A‑Q that would call; checking back only wins against missed draws, which would rarely call a bet.

Choosing a river bluff by its cards

The card you holdEffect on the bluff
a card of the hands that callfewer calls: the bluff works more often
a card of the hands that foldfewer folds: the bluff works less often
a hand that wins at showdownchecking already wins something

Keep going

Today's spot →

Sources

Frequently asked questions

What is a blocker bluff on the river?

A bluff chosen for the cards it holds: a card that the calling hands need, so the opponent holds fewer of them.

How much does a blocker remove?

On a K♠ Q♣ 7♠ 3♦ 2♣ board, holding the A♠ leaves the opponent 9 A-K instead of 12, and 9 A-Q instead of 12.

Can a blocker hurt a bluff?

Yes, when it removes hands that would fold. A♠5♠ also takes the opponent's two-spade hands from 55 combos down to 36, and the missed flush draws among them fold.

How we made this page

The spots come from our library of 647 puzzles. Their expected answers follow rules we wrote and explain on each puzzle; they are not solver outputs. 2 figures on this page are recomputed from the cards by our automated tests. Written with the help of AI tools, then reviewed and checked by our team.

Read also