A game of speed and observation: any two cards always share exactly one symbol, and the first player to pick it out wins the card.
Fifty-seven cards of eight symbols, taken from a set of fifty-seven different symbols. Any two cards always have one symbol in common, and only one.
This is no manufacturing accident: the deck is built by a geometric calculation that guarantees this property for every pair of cards, and it is checked at the start of every game.
Each player receives one card, placed face up in front of them. After a short countdown, a card is turned over in the center of the table. The rest form the draw pile.
All the players search at the same time for the symbol their own card shares with the center card. The first to touch the right symbol wins the center card: it goes on top of their card and becomes the one they compare with the next.
After a short pause, a new card is turned over in the center, and the race starts again.
Picking a symbol that isn’t the right one costs nothing you have already won, but locks you out for two seconds: you can’t pick anything, and the others keep searching.
This lockout is set so that touching symbols at random, one after another, takes longer than looking.
If nobody finds the shared symbol before time runs out, the center card is set aside without being won, and the next one is turned over.
The game ends when the draw pile is empty. Whoever has won the most cards wins; tied players share their place in the ranking.