Calculation Solitaire also known as
- Broken Intervals
- Hopscotch
- Strategy
- Sir Tommy

How to play:
At the start of play an ace, two, three and four (foundation cards) are laid out at the top of the table. The player then turns over a card from the pack. They can then play the card onto one of the foundation cards if it is the next number in the sequence or the player can put the card on one of the four tableau piles. The player can also play the top cards of each tableau pile if it matches the sequence for that pile. The sequence for each pile is as follows ->

A,2,3,4,5,6,7,8,9,10,J,Q,K
2,4,6,8,10,Q,A,3,5,7,9,J,K
3,6,9,Q,2,5,8,J,A,4,7,10,K
4,8,Q,3,7,J,2,6,10,A,5,9,K

You win by making each foundation pile display a king.