01Choose a variant
Both games use two standard 52-card decks and eight shared tableau spaces, four dealt by each player. In Portuguese Crapô, the decks are half-swapped and each reserve has 14 cards: 13 face down and one face up. In Crapette / Russian Bank, each player keeps a separate deck and each reserve has 13 cards: 12 face down and one face up. The remaining cards form each player's stock.
02Build the shared table
Build tableau runs down by rank in alternating colours: a red 6 goes on a black 7. Any card or movable run may fill an empty space. There are eight foundations, two for each suit. Each builds from Ace to King and holds at most 13 cards.
03Portuguese Crapô reserve
Play its face-up top card to a foundation whenever possible. You may place it in the tableau or on an opponent's pile only while a tableau space is empty. If no tableau space is free and the top cannot play, reveal the next face-down crapô card over it. You may play the top of your waste pile during your turn.
04Crapette priorities
If your reserve top can go to a foundation, play it first. Other available foundation plays come before non-foundation moves. If a tableau space is empty, fill it from your reserve before drawing. In this variant the waste top cannot be played; a new reserve card is revealed only when its top is moved away.
05Draw or play
Turn one card from your stock face up. In Portuguese Crapô, play it if possible; otherwise send it to waste to end your turn. In Crapette, you may send it to waste even if it has an optional tableau play, but never while a required foundation play is available. When stock empties, turn the waste over to make a new stock without shuffling.
06Use the opponent's piles
Put a card on the opponent's face-up reserve or waste top if it is the same suit and exactly one rank above or below it. Covering the opponent's reserve from a newly drawn stock card also requires an empty tableau space. Covering their waste from stock does not.
07Move runs
Tableau runs move together if they remain in descending, alternating-colour order. With 0, 1, 2, 3 or 4+ empty spaces, you can move at most 1, 2, 4, 8 or 13 cards respectively. This applies to a run's size before it is moved.
08Win the race
The first player to empty their reserve, stock, waste and current drawn card wins. The game calls a draw when both stocks have been scanned with no legal move left.
09Controls
Choose a variant above the table; switching starts a new game. Select a face-up source, choose a run length if it is a tableau pile, then click a highlighted destination. Use Draw to turn the stock card. Use Send to waste when allowed to finish your turn.