Coda (board game)
Coda is a code-breaking board game for two to four players, invented by Eiji Wakasugi. The objective is to guess the code of other players while preventing the discovery of your own code. The game has been marketed under the titles Da Vinci Code and Da Vinci Code The Game. In spite of this, it has no connection to the novel The Da Vinci Code.
Gameplay
The game is played using twelve black and twelve white tiles numbered from 0 to 11 on one side..
Initially all the tiles are laid face down on the table. Each player then chooses four tiles (three tiles if there are four players) and arranges them secretly in growing order with the smallest number on the left to make his/her code. If the code contains the same number twice, the black tile is always considered as smaller than the white one.
A player turn consists in drawing one of the remaining tiles, looking at it secretly and proposing a value for one of the hidden tiles in an opponent code. If the proposed value is not correct, the player must reveal the tile he/she has drawn and insert it at the correct place within his/her own code giving consequently information about his/her code. If the proposed value was correct the opponent must reveal the matching tile in his code, and the active player may decide go on proposing values for hidden opponent tiles until he/she either guesses incorrecttly or decides to stop. When he/she decides to stop he/she inserts the drawn tile without revealing it at the correct place in his/her code making consequently the code longer.
A player loses the game once his/her code is completely revealed.
Variant play
To make the game more complex two (one white and one black) additional joker tiles can be added. Those tiles can be placed anywhere within the code.