Calcite Conundrum allows a player to start and maintain a second set of Bottom and Top Run cards using cards from his five-card hand. The player lays down a second Bottom and Top Run card right next to his first. The player’s bunnies in The Bunny Circle are used to play both sets of Bottom and Top Run cards. As play continues (either clockwise or counter-clockwise) the player plays the Top Run card of his first set of cards (and the Bottom Run if he has a Bunny Triplet), finishes using his first set of cards, and then moves on to his second set of cards. After playing the second set of cards, the player’s turn is over. This player will keep four cards down and three cards in his hand at all times.
If at any time the player has no bunnies in The Bunny Circle, then all cards are immediately replaced with cards from the Draw Pile and normal play begins again for that player with seven new cards.