1 2 3 Bitmax

Bitmax and his friends live in the Blue Forest. Keep an eye on their movements using your memory. Each card is the same on both sides, except for one detail. While players keep their eyes closed, the guard turns over one of the cards, looks for any changes, and says “1, 2, 3 Bitmax!”. Then, the other players open their eyes. In turns, and starting with the player on the guard’s right, players will say which card it has been changed and why.