ConcentrationAndCard app for iPhone and iPad

When the game starts, all the cards are covered. Please click the first card and it will turn over for you to see. Try to remember its print and size.
Two cards are a set, until you turn all the cards face up, then you win. There is limit for the number of clicks you can do. Please memorize the card print and size. At the same time, you need a little luck.
If you only have the last card left, there is no other card to match, you can turn any two already matched cards face down. Then click any cards that can be matched until only two cards left, but they are not matched. Repeat the same way as previous method.