A card game for 2-6 players, © by Bill de Veas, 2020-02-04; last revised 2020-10-03
Play cards from your hand by following or changing the direction of the 'traffic flow'.
Win by getting rid of all the cards in your hand.
This game can be played with one or two standard French-suited card decks (52 cards, no Jokers).
Extract all 13 cards of one suit (for instance, Clubs) from the deck.
The remaining deck of 3 suits is the draw deck.
Each deck should have a different and distinct back design, to avoid mixing them.
Deck 1: Extract and shuffle the black A,3,5,7,9 and red 2,4,6,8,10 cards into one stack, which will be the directions deck.
Also extract a King, a Queen, and a Jack; these comprise the flex cards.
The remaining cards from this deck are not used.
Deck 2: If there are 3 or fewer players, remove all cards of one suit (for instance, all the Clubs). Otherwise, leave the deck intact. This is the draw deck
Shuffle the draw deck, and deal each player 5 cards from it.
Put the directions deck and draw deck in the middle of the play area. Turn over the top card of both, starting new face-up piles next to each.
Place the three flex cards face-down in a row, in any order.
The face-up pile beside the draw deck is the flow.
Aces rank simultaneously lower than 2 and higher than King.
Players take turns playing the appropriate number of cards (default 1) from their hand into the flow according to the current rules as defined by the flex and direction cards.
At any point before you start playing into the flow, if you have not yet turned over a new direction card, you may do so.
When you exhaust the draw deck (by drawing or turning over the last card), you may reveal a randomly chosen flex card, at which point that card's new rule immediately goes into effect for all players.
The direction card's rank indicates in which direction to play cards into the flow:
(If you need a memory aid, remember that 1 is odd and 10 is even.)
At game start, by default, players may play 1 rule-matching card from their hand per turn.
The flex cards loosen these requirements for all players, as follows:
A deck that has been exhausted shall be restocked (its face-up pile shuffled and turned face-down) when a player needs to draw or turn over a new card from it. In the case of restocking the draw deck, take care to leave the flow card in the play area for continuity and player reference.
The first player to end their turn with no cards in their hand wins.