The concentration game Pexeso with chess motifs consists of 64 cards = 32 pairs. The cards have size 4,3 x 4,3 cm. In beginning, all the cards are laid face down on a table - they can be arranged as a square 8 x 8 cards or in other way by agreement of players. Player, who is on the move, chooses two cards and turns them face up. If they are identical, then that player takes the cards, wins 1 point and plays again. If the 2 cards are not identical, they are turned back face down on the same place on the table and continues next player. The winner is player, who has more points.