There are also two special cheques labeled -50% and -100%, which, if taken to the end of the game, reduce the contestant's final winnings by 50% and 100% respectively.
Once an offer is accepted, the traded envelopes are opened to reveal the amount inside, then destroyed in the same manner as Part 2.
The contestant can also choose to open an envelope and immediately claim the amount inside.
The format was also sold to several other countries (including Italy), where it was ultimately not broadcast.
A pilot episode was produced in Ukraine for ICTV, under the name Гра на темно (Gra na temno), with Pavlo Shilko as the host.