Cribbage
You against the computer. Two players, six cards each, first to 121.
Cut for deal: you cut Queen of diamonds, the computer cut 6 of spades. Lower card deals.
Choose two cards for the computer's crib.
The computer sees only its own cards and what has been played, as you do.
How to play
Pick two cards for the crib and lay them away. The crib belongs to whoever dealt, and the deal crosses every hand.
On your turn, press a card that fits under 31, or Say go when none does. Fifteens, 31, pairs, runs, the go and the last card are scored as they happen, and the hands and crib are counted for you afterwards.
The computer sees only its own cards and what has been played. New match starts again from the cut, and nothing is saved. The same game with a friend is at a table of its own, and the rules are on how to play cribbage.