Mus

Mus is a four-player partnership card game from the Basque Country that has become Spain's unofficial national card game. Played with a 40-card Spanish deck. Four bidding rounds — Grande, Chica, Pares and Juego — each with independent bluffing, big-mouth escalation and clandestine visual signals between partners. Extremely popular in Spain, Latin America and the Basque diaspora with official world championships.