Trefoil Card Game

Trefoil is a pile based solitaire card game similar to La Belle Lucie. It begins with the 4 aces dealt into the foundation, and the remaining 48 cards dealt into 16 piles of 3 cards each. You can only more the top card in each of the piles, and you can only build the piles down by suit. Once all the cards are removed from a pile, that pile is gone and you can't restart it with any card. You have a limited number of shuffles where all the cards left in the piles can be picked up and re-dealt into piles of 3 cards each.