Liar’s Dice strategy: odds, bidding and bluffing

This guide is for Perudo-style Liar’s Dice as taught on our Liar’s Dice rules page: five dice each, ones wild, and the loser of a challenge loses a die.

Estimate the total

Start from the number of dice in play, not from your own cup.

• For a bid on 2s through 6s, each unknown die counts with probability 1 in 3: it either shows the face or is a wild 1.
• For a bid on 1s, each unknown die counts with probability 1 in 6.

So, on average, the number of dice of a normal face among N unknown dice is about N ÷ 3, and of ones about N ÷ 6.

Example

There are 20 dice in play. You hold five, including two 4s and a 1, so three of your dice count toward a bid of 4s. The other 15 dice should hold about 5 matching dice on average. A bid of about eight 4s is therefore the average expectation.

Bidding above this average is a bluff. Bidding at or below it is usually safe.

Use your own dice

Your cup gives you certain information. If you hold several of a face plus a wild one, bid that face. It is more likely to be true, and it sends other players toward numbers you are strong in.

Challenge when a bid is well above the average

A bid a full die or two above expectation is a good candidate for a challenge. But bids near the average are close to a coin flip, so challenging them often just costs you a die. Watch how the number of dice in play changes over the game: with fewer dice, the average falls.

Bluffing

A bluff works best when it is plausible. A small step above the expected count can pass, and it sets a trap for the next player. Bluff less often against players who challenge a lot, and more often against cautious ones.

Read opponents

• A player who keeps bidding the same face may hold several of it.
• A player who suddenly changes face may be pushing you off their strong number.
• Note who challenges quickly and who bids safely.

Jumping to and from ones

Moving to ones halves the quantity you need (rounded up), and moving back doubles it and adds one. Use ones as a way to change the count without raising it much, and check the conversion carefully before you speak.

When you are down to one die

With one die you can barely influence the count. Bid carefully, challenge when a bid is far above the average, and use the fact that opponents rarely know your die.