Building on builds: A player may build upon another player’s build if he has a card that will total the value of the three cards in the build.If any of the other players has an 8, he may steal this build before it gets back around to the original player. For example, if there is a 2 in the middle and a player has a 6 and 8 in his hand, he can place the 6 on the 2 and declare, “building eight.” The player who does this may not capture the cards from this build until his next turn. Building: A player may build a combination on a middle pile by adding one of the cards from his hand, if he has the card that the new combination will add up to.For example, if a player has a 9 and the board shows a 5, 4 and 9, then he may take the combination (5 and 4) and the pair (9) at once. Capturing cards by pairing and combining: A player can execute the above two moves simultaneously if the middle cards support the maneuver.For instance, a player with an 8 could capture a 6 and 2. Capturing cards by combining: A player can capture numerical cards (Ace to 10 - not face cards) in combination if the value of the cards adds up to the value of a card in the player’s hand.The player places his card down and then collects the matching pair for counting at the end of the game.

Capturing a card by pairing: A card from the player’s hand matches the rank (number) of a face-up card in the middle.

Casino 21 card game rules