Jacquet is a tables game played on a backgammon-like board and which was once very popular in France and several other parts of Europe.

[4] During the 19th century, confusion existed in French sources which sometimes equated Jacquet to Backgammon, but a distinctive feature was that the majority of pieces or men could not be moved until the first one, the courier, had reached the fourth quarter of the board.

The special feature of Jacquet is the obligation to bring one of the men into the last quarter of the board before the rest are moved; this man is the 'courier' or 'postilion' (postillon).

[9] Jacquet is played on a tables board of the type used for Backgammon with the exception of any storage strip, and with 15 pieces, known as men[a] for each player, as well as two dice.

Each player places fifteen men on the nearest section of the board and to the left, called the talon ("heel").

[4] The rules of movement are:[4] If unable to make a legal move, it is forfeited, i.e. any unplayable numbers are lost.

Once they have entered the last quarter, they are removed from the board according to the following rules:[4] When a player occupies six adjacent points, it causes a bouchon ("bottleneck" or "blockade") which completely blocks the progression of the adversary's subsequent men; we speak of "blocking" the passage.