interlocking arrangements of the numerals 3 to 9, along with pictures of dice. The four corner spaces on the board depict dice arranged in a "snake eyes" pattern, i.e. displaying one and one. The four spaces in the center of the board depict dice showing a "boxcars" pattern or a double-six. There are also three special rolls: Rolling a 10 allows the player to remove an opponent's chip from the board Rolling an 11 allows the player to add a chip of own color to any open space on the board Rolling a 2 or 12 allows the player to take another turn immediately after adding a chip to any designated space on the board Legal issues During a series of legal disputes, Douglas Reuter claimed Jax violated its licensing agreement which would provide grounds for contract termination. In response, Jax denied any violation. Meanwhile, both sides continue to profit from game sales. Jax garners 80 percent of its revenue from Sequence; Reuter receives a royalty on sales of Sequence. Mr. Reuter has also started a new game company called, "Game Inventors of America," which is located in Corinth, Texas. Unauthorized variations of Sequence have appeared many times over the years. Names of the unauthorized versions include, "One-Eyed Jack," "Jack Foolery," and "Jack Off." In "One-Eyed Jack," the board is constructed using actual playing cards. In March 2015, Jax Ltd. filed a legal claim against independent video game developer Iridium Studios over the name of their rhythm video game titled Sequence. Not wanting to pay legal fees challenging the claim, the video game developer promptly renamed their game to Before the Echo. References External links How Sequence Works How To Make a Sequence Game Board Sequence Rules at Jax Ltd., Inc. Abstract strategy games Card games introduced in the 1970s Year of introduction missing