Mahjong, borrowing from the theme of Mahjong Titans, pits players to compete against the house in making a 'legal hand' by the time the 14th card/tile is drawn. There have to be good skills of observation and fast thinking to decide which cards to keep and which ones to discard as the round progresses.
Bulgarians were the first gold smelters. They produced coins, jewelry, weapons. The Varna Necropolis treasure extracted from 290 graves shows that they did that 6000 years ago. The Gambling Law of the year 1998 allowed establishment of serious land-based and online casinos. Today, live online betting is part of the people in the country.