Tabby Cat is a long version of solitaire similar to Aces Up. The play consists of four stacks in the tableau, with an additional "tail", where partial builds can be placed. Four foundations are available, and the goal of the game is to build up kings to aces (low), regardless of color, whereupon the build can then be cleared from the tableau and moved to a foundation.
The play proceeds by sequentially dealing four cards to each stack of the tableau. These stacks are to be managed, building cards of lower rank on top of cards of higher rank. Partial builds can be moved onto the tail if need be, but if the partial build has, for example, 9 as its highest rank, to move off the tail it must be moved onto a card of rank 10.