flash 10 strategy game2 5 Players 20 Mins Ages 8+ Wolfgang Kramer's Flash 10 is a quick playing take on the Rack O game system, with players trying to arrange cards in numerical order but doing so all at the same time. The card deck includes 120 cards, twenty showing a thunderstorm and the other hundred numbered 0 99, with each card ending in 0 or 5 showing a lightning bolt. Someone shuffles the deck, then each player receives ten cards face down, which they place in a row