Note: This is the import Chinese version from Jolly Thinker. The game is language independent. English rules can be found here.
The game consists of sun and moon cards with numbers and, in some cases, animals. There are also eclipse cards. The players place the cards on stacks in ascending order, either in front of themselves or in front of others. When a stack is five cards high, it can be removed and counts points. Stacks can be interrupted by eclipse cards, which, in turn, can be covered by appropriate sun/moon cards. Playing a card with an animal means that a player can play again, which is sometimes advantageous, sometimes not. The player with the largest number of removed cards is the winner.