2012 Six-red World Championship shown below: The top four players from each group qualified for the knock-out stage. All matches were best of 9 frames. 2012 Six-red World Championship The 2012 Six-red World Championship (often styled the 2012 SangSom 6-red World Championship for sponsorship and marketing purposes) was a six-red snooker tournament held between 2 and 7 July 2012 at the Montien Riverside Hotel in Bangkok, Thailand. The highest break of the tournament was 75, compiled by both Judd Trump and Shaun Murphy. Mark Selby was the defending champion, but he lost in the quarter-finals 5–7 against Trump. Mark Davis won his second Six-reds
2017 World Snooker Championship at one point. The top 16 seeds automatically qualified for the last 32. Defending champion Mark Selby was seeded 1, while other seedings were allocated based on the latest world rankings. All the other players (from 17th place in ranking) started in the first round of qualifying and were required to win three best-of-19-frame matches to reach the Crucible. Qualifying rounds were held at the Ponds Forge International Sports Centre in Sheffield from 5 to 12 April 2017. After losing to Mark Selby in the China Open final, two-time former world champion Mark Williams failed to regain his place in