Ludovox http://ludovox.fr/jeu-de-societe/les-chevaliers-arc-en-ciel/
Français - Les Chevaliers Arc-en-Ciel est un jeu de confrontation d’arcs-en-ciel en 60 secondes ! Il peut être joué n’importe où et n’importe quand.
Boardgamegeek https://boardgamegeek.com/boardgame/251987/rainbow-knights
Anglais - Rainbow Knights is a fast and frantic real-time card game in which players seek to play as many cards as possible within a pre-determined play area. Each card extends the player's path, but players' paths must not intersect. Once no more cards may be played within the designed area, the player who managed to lay the most cards wins!