A card holding case includes a rear sheet having a first major area, and a front sheet having a second major area. The card game involves presenting a plurality of sets of hole cards to one or more players. A reliable transmission protocol is provided wherein at one or more of the nodes, a LAPD protocol unnumbered information frame containing the failure message is sent to connected nodes. The first refractive optical element is movable along a first direction, while the second refractive optical element is movable along a second direction.