European Central Bank Launches On-Line Tetris
Popular game explains the security features built into the new 20 EURO banknote.
European Central Bank launched online tetris, designed to educate about security features built into new 20 EURO note, informs engadget.com. After removing line after line, players open a picture which is one of the security features - for example, a hologram. After the game is completed, the player will be able to see the full picture and information about how to check banknotes authenticity.