Chemical elements
Order by atomic number, lowest first. You get one card and a line of cards already in place — slot it where it belongs. Three wrong guesses and the run is over.
Order by atomic number, lowest first. You get one card and a line of cards already in place — slot it where it belongs. Three wrong guesses and the run is over.
Every card in this deck carries a hidden value on the same scale — atomic numbers — and the run is one long sorting problem. The first card is dealt face up. Each card after it goes into the gap where you think it belongs, and the value only shows once it lands. Get it wrong three times and the run ends with whatever you had placed.
This deck can also be shuffled together with any other deck measured in atomic numbers — tick several on the deck tree to build one longer timeline out of them.
28 of the 97 cards you could be dealt, plus 69 more. The values stay hidden until you place them.