No monetary prizes are awarded nor stressed in this program, as the format aims to find individuals who possess extraordinary mental skills.
The advisory judge will nominate one contestant from those who have won the head-to-heads in the winning team at the end of each competition, as one of the four finalists.
However, due to the fact that the third match between China and Japan ended with a tie, Robert Desimone nominated one contestant from both of the teams, meaning there would be five finalists in all.
This challenge is based on their strengths in mental techniques, and it will be extremely harder than those they have been played earlier in the show.
Similar to the previous season's second phase, contestants have to achieve 80 points by the panel's decisions.
One of the members of "The Brain's Hall of Fame" will join the judging panel, in order to select the best contestants.
As the previous season's grand champion, Chen Zhiqiang is guaranteed as a finalist to defend his title.
Also, there would be a special sudoku contest and mental calculation head-to-head competition, since there were no panellists in "The Brain's Hall of Fame" who specialise in either of these fields.
To be fair, the details of their games would not be revealed to both the human contestants and Xiao Du itself before the recording of the show.
Qualified contestants in the previous phase will take on one of the members in the Hall of Fame under a head-to-head challenge designed by the production team.
The World consists of nine contestants who were believed to be the best in their respective mental specialists, or from other international versions of The Brain.
After all the head-to-head games, regardless of the outcomes, Dr. Wei Kunlin and Prof. Robert Desimone will nominate one contestant from each of the two panels to proceed to the final along with the returning grand champion Chen Zhiqiang and Xiao Du.
After all the games, the judging panel will cast the deciding result and nominate the newest and last ever grand champion of The Brain.
Note: "Wang Feng" in this episode is not the singer, but a 24-year-old writer in Beijing; "Li Yong" is a 50-year-old man is currently living in Henan Province, not the former CCTV television host.
Eliminations in this episode: Rao Shunhan, Yang Wanli, Li Yong, Miki Yuk Kuen Lee.
The foreign contestants are from Italy, and all of those are winners of Superbrain - Le Supermenti(the Italian distribution of The Brain, running on Rai 1).
The foreign contestants are from Spain, and all of those are winners of Increíbles: el gran desafío(the Spanish distribution of The Brain, running on Antena 3).
That night's guests are: Cecilia Cheung, a Chinese actress, singer, two-time Hong Kong Film Awards winner; the other one is Kim Soo-hyun, a Korean actor, Korean Movie Bell Award winner in 2013, the starring of Asian-hit Television series My Love from the Star.
The advised judge is Bernard Balleine, a Laureate Fellow of Australia and Director of the Laboratory of Neurobehavioral Sciences in the Brain and Mind Research Institute in the University of Sydney.
Chen Cen, the captain and head coach of the national Sudoku team of China, later said that Sun Cheran was qualified to stay in the show, the main reason being that her ability is more than enough to challenge the Europeans.
Some media reports said that Jiangsu Television dispatched a charter flight to send Kim from Seoul, South Korea to Nanjing, where the show was taped.
Other media reported that Kim's visit's appearance fee is about three million Chinese yuan (KR₩521,319,010, US$ 488,520, €352,110, GB£ 293,249, HK$3,791,524 or 10,299,462,628 ₫; sponsored by Google Finance).
(Mu Rong, a project manager of an advertising company in Guiyang, Guizhou Province) Wu got a maths question wrong... dealing with it seriously or carelessly makes a great difference.
It was reported that the host Jiang along with some contestants in the show are facing the heated consumption among the Chinese merchants.
This season also consists of challenges performed outside the studio, for instance, one contestant took the task in Hong Kong.
Mandopop icon Jay Chou was back for the fourth time in total, and Ning Jing was also one of the celebrity guests.
Note: Due to personal requests, Sze Wai Ho (scored out) withdrew from the competition later on.
Ultimate winner: United Kingdom won the competition with a result of 3–1, which means the Chinese contestants have lost two shows in a row.
Xie Chaodong Starting Episode 7, each incumbent and challenger competed for one seat on the international team in a total of nine head-to-head contests.
Here, I will only say one sentence: this stage may not; but the spirit of science lasts forever.Therefore, Sang Jie, the executive producer of The Brain announced that the show won't be renewed for a fifth season, according to contestant Bao Yun's weibo.