A single-player card stacking game. A test of strategy, luck, and concentration based on the solitaire-style card game Calculation. Players begin with four base piles (which can only be built on following a sequence going from atomic to galactic) and four empty stock piles (which can be built on in any order). Shuffle the deck and draw one card at a time. These must either be placed on a base pile (if possible) or one of the stock piles. Cards can also be moved from stock piles to base piles. The aim is to use up all cards to complete the sequence on the four base piles. If you reach the end of the deck and still have cards in stock piles that can't be moved, you lose! Work out the optimum strategy for success (it's all down to how you order your stock piles, and a bit of luck). A good player can complete the game 1 out of 4 times, but can you do better?