In this game you play 10 pin bowling with cards. Cards from A to 10 of two suits are used. Ten cards are laid out face up as pin cards, they are arranged like the pins in a bowling game, i.e. in the form of an inverted triangle with 4 cards on each side. The remaining 10 cards are the ball cards, they are arranged in three piles of 5, 3, and 2 cards respectively, where only the top card in the piles are face up. Each time you use a top card from the ball piles to knock off the pin cards. You can knock off a single pin card if the number is the same as the ball card. You can also knock off cards that are adjacent to each other (up to 3 cards at a time) if the sum of the numbers on the cards yields a number with the final digit the same as the ball card. For the first ball card, you cannot knock off any of the pin cards in the back row, nor only knock off the single pin card at the centre. The knocked off pin cards and the ball card are removed, and you can continue to knock off pin cards with ball cards. Each time you knock off new pin cards, they must include cards that are adjacent to the previously removed pin cards. When you can no longer knock off pin cards, click the "Finish Ball" button and then the first ball is over. The top cards of each of the ball piles are removed, and you continue knocking off pin cards in the same manner, this is the second ball. If you knocked off all 10 pins with the first ball, then you get a strike and gets 30 points for the frame. If you knocked off all 10 pins with the second ball, then you get a spare and you get points equal to 10 plus the number of pins knocked off with the first ball. If you cannot knock off all the pins with the second ball, then you get an open frame and you get points equal to the number of pins knocked off. Play 10 frames, the more points you get, the higher your rank.