Tablero de Jesus
Tablero de Jesus is a two-player board game that is popular in the SCA. A 7 x 7 space board is used; each column has one coin in it, and the players roll dice to move and claim the coins. A drinking variant called Tablero da Gucci is extremely popular in much of the Society, especially An Tir.
Current research indicates that Tablero was, unfortunately, an outside hoax that was innocently imported into the SCA -- there is no evidence that the game was actually played in period, and the documentation seems to be entirely fraudulent.
The Period Games Rules Page -- articles on Tablero are listed in its section