B2, a pawn bored by monotony, decides to break with routine and go to the party that has been organised in the ''parchís'' game. But it won't be easy because the party's organiser, Mr. Dice, will not allow him to enter: B2 is a piece that does not belong and does not fit with this game. After several attempts to sneak in, he will finally discover that it was not necessary to leave his board to have fun.