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Mus Rules: The Spanish Bluffing Game
classiques 6 min read

Mus Rules: The Spanish Bluffing Game

Mus Rules explained simply: setup, how to play, scoring and popular variants, plus beginner tips for your first games.

Updated on March 27, 2026

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Mus: The Spanish Bluffing Game

Game Overview

Mus is a popular Spanish card game, originating from the Basque region, designed for 4 players in fixed partnerships. The game requires a standard 40-card Spanish deck, with suits of swords, batons, cups and coins. The suits have no significance in Mus, and two ranks double up: the 3s count as kings and the 2s count as aces, so the pack effectively holds eight kings, eight aces, and four each of Caballo, Sota, 7, 6, 5 and 4. The ranking runs R (or 3), C, S, 7, 6, 5, 4, A (or 2). The game is unique as it is a partnership game, played without money, and relies heavily on bluffing and strategy.

Objective

The objective of Mus is to reach 40 points before your opponents, with games typically consisting of the best of three. Points are scored for having the best hand in four categories: Grande (high), Chica (low), Pares (pairs), and Juego (game).

Setup

The dealer shuffles, the player to the dealer's left cuts, and the dealer then deals the cards anticlockwise, one at a time, until each player has four. The player to the dealer's right speaks first in every round of betting and is known as the mano. Partners sit opposite each other, and the whole game runs anticlockwise.

How to Play

  1. Mus Proposal: The mano proposes a Mus, inviting all players to discard and draw cards. The discard happens only if all four players agree: each player in turn, starting with the mano, then discards from one to four cards face down and is dealt the same number of new ones. The process can be repeated as long as everyone keeps agreeing to Mus, and if the stock runs out the discards are shuffled to form a new one. If any player says "No hay mus", there is no discard and the game proceeds straight to the first round of betting.

  2. Betting: The game consists of four rounds of betting, each on one of the four categories: Grande, Chica, Pares, and Juego. Players bet on who has the best hand in each category, with the betting order starting from the mano and proceeding anticlockwise.

    • Grande: The hand with the highest cards (arranged in descending order) wins. In case of a tie, the earlier player wins.

    • Chica: The hand with the lowest cards (arranged in ascending order) wins. In case of a tie, the earlier player wins.

    • Pares: There are three types of pairs, in ascending order: par simple (two cards of equal rank and two of different ranks), medias (three cards of equal rank and one card of a different rank), and duples (two pairs). Any duples beats any medias, and any medias beats any par simple, whatever the ranks involved. Between two hands of the same type the higher pair wins, and in case of a tie the earlier player wins.

    • Juego: Card values are 10 for the Rey (king) and the 3, 10 for the Caballo, 10 for the Sota, then 7, 6, 5 and 4 at face value, and 1 for the ace and the 2. To have a Juego at all you need at least 31 points. The best Juego is exactly 31, then 32, then — in descending order — 40, 37, 36, 35, 34 and 33, which is the lowest; totals of 38 and 39 are impossible. So a hand of 31 beats a hand of 40, and 30 points or fewer is no Juego at all.

  3. Showdown: The betting on each category is taken in strict order, and only after all four betting rounds are complete is there a showdown in which the hands are compared and the points for every category are calculated.

  4. Scoring: Points are scored using small stones (piedras). Where there has been no betting, the side with the best Grande wins one stone and the side with the best Chica wins one stone. For Pares, the side with the best holding scores for its own and its partner's hand — 1 stone for a par simple, 2 for medias, 3 for duples — and the other side scores nothing for any pairs it may hold. If two hands are otherwise equal, the mano wins, or the earliest player after the mano in anticlockwise order.

Scoring and End of Game

The first team to reach 40 points wins the game, which usually takes several hands. A match is normally played as the best of three games, so the overall winners are the first side to win two games.

Common Variants

There are several variations of Mus, including games with four kings and four aces, Juego Real, variations in signals, Mus Visto, and versions for three, five, or six players.

A Bit of History

Mus is a traditional Spanish game, of Basque origin, that has been played for centuries. Its mechanics, while reminiscent of gambling games like Poker, set it apart due to its partnership format and lack of monetary stakes.

Where to Get the Game spanish deck mus on Amazon

Beginner Mistakes to Avoid

  1. Not understanding the importance of the Mus proposal: Remember that players can discard and draw cards only if all players agree to Mus.
  2. Miscalculating points: Be sure to understand the point values of each card and the requirements for a valid Juego.
  3. Overlooking the betting order: Remember that the betting order starts from the mano and proceeds anticlockwise.

FAQ

  1. What is the minimum number of players for Mus?

    • Mus is designed for 4 players in fixed partnerships.
  2. Can Mus be played without a partnership format?

    • No, Mus is a partnership game and is not designed to be played without partnerships.
  3. What are the three types of pairs in Mus?

    • The three types of pairs in Mus are simple pairs, medias, and duples.
  4. How many points do I need for a valid Juego?

    • A player must have at least 31 points for a valid Juego.

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Sources: Official game rules and publishers. Last checked: March 27, 2026. https://www.pagat.com/vying/mus.html