This is my person favorite and a 2 player game.
1. Player 1 deal 7 cards down side by side.
2. Player 2 goes first, and draws from the remain card pile. If they play they draw again and keep playing until they no longer have a play.
3. When player 2 can no longer play, they place the last card drawn on the discard pile (it will be the only card after the first play).
4. Player 1 may now pull from either the discard pile or the remaining cards and continue to play until they no longer have a play - discarding the last card.
5. Player 2 continues with the same rules.
6. The first to complete their pyramid wins.