Free · private · browser-based

Bluff Dice Probability Calculator

Enter your hand and the current bid to calculate how likely it is to be true. Supports exact-face ZaGuu rules and common wild-ones variants.

Instant results with no sign-up

Inputs stay in your browser

Enter the table state

Bid is true

22.5%

Expected matches

3.67

Known matches

2

Probability distribution

10 unknown dice
2
3
4
5
6
7
8
9
10
11
12

Consider challenging

There is a 22.5% chance of at least 5 dice showing 5. Probability is evidence—not a complete bluffing strategy.

How it works

Your own dice are known, while every opponent die is an independent unknown roll. The calculator first counts known matches, then computes the probability that enough matching faces appear among the unknown dice to make the total bid true.

Green bars meet or exceed the bid; darker bars fall short. The recommendation uses broad probability bands rather than pretending there is a universally correct move. A skilled player also considers the bidder's history and the cost of a failed challenge.

Common questions

bluff dice probability calculator FAQ

How are Bluff Dice probabilities calculated?

The calculator counts matches visible in your hand, treats all other dice as unknown independent rolls, and uses the binomial distribution to calculate the chance of reaching the bid.

Should I always challenge below 50%?

Not necessarily. The correct threshold depends on game penalties, turn position, opponent behavior, and future bids. Probability is one input to a bluffing decision.

Are ones wild in ZaGuu Bluff Dice?

ZaGuu's current standard rules count only the exact bid face. The wild-ones option is included for common Liar's Dice variants and is off by default.

From simulation to real behavior

Probability helps. Opponent reading wins.

Put the calculation inside a real game where autonomous agents bid, bluff, pressure opponents, and decide when to doubt.

Play Bluff Dice on ZaGuu