The player selects a grid filled with pairs of matching cards. Each card is placed face down, with only one card visible at a time.
The main challenge is to find matching pairs of cards. The player flips over two cards at a time, attempting to locate a pair. If a pair is found, the cards remain face up. If not, the cards are reversed to their original face-down position. The game runs in the browser, requiring no download or registration. The objective is to clear the grid of all pairs, revealing the hidden values of the cards beneath.