Center of traffic organization has prepared a quest for Muscovites and guests of the capital.

A limited edition of the transport cards of the "Troika", released as part of the company "feel the style of the city – to observe traffic regulations" decided not to sell, but… to hide on city streets to be found citizens.

As reported by TMS in his Twitter account, hiding the cards will be on Tuesdays for the next 10 weeks. In this account you will find comments with tips that helps to find the rare "Threes".