Reverse English auction
The essential rules of auctions:
- Before the start of the auction, the participants submit their bids
 - The auction has three rounds
 - During the round, the players are betting alternately
 - The last sentence is the one who offered the lowest price
 
                    
                The winner
- No one if any bet was not made
 - The participant that the last offered the price
 
Both English and reverse auctions have a similar workflow and shared features:
- Each auction type starts with an initial price value set by the auction organizer and changes (grows or falls) by a predefined minimal step value.
 - For the sake of fair play, the participants stay anonymous during the whole bidding process.
 
The auctions consist of a three rounds, each round being limited in time.