GlossaryStrategy

Bluff

A bet made with a hand that rarely wins at showdown, hoping better hands fold.

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What it means
A bluff wins by making the villain fold. The best bluffs are hands that would almost never win if you checked, so a fold is the only way they win.
How it is calculated
The rule of thumb: if your equity against the villain's whole range is under 20%, checking rarely wins, so bet as a bluff. How often a bluff must work is the bet ÷ (pot + bet).
Worked example
You bet 6bb into 12bb as a bluff. It needs to work 6 ÷ 18, about 33%, of the time to break even.
Why it matters
Bluffing with hands that have some showdown value throws that value away. Bluffing with the weakest hands costs nothing when they would have lost anyway.

Lessons that teach it: A ratio and a share describe the same bets, Value, bluff or check · lessons other than the free one need an invite

See also: Value bet, Showdown value, Fold equity, Semi-bluff