World Test Championship.

The World Test Championship is a cricket competition organized by the International Cricket Council (ICC) to determine the best Test cricket team in the world. The inaugural edition of the championship was held from 2019 to 2021, with India emerging as the champions.
The championship involves the top nine Test cricket teams in the world, with each team playing six series - three at home and three away - against other teams over a two-year period. The top two teams at the end of the league stage then play a final match to determine the champion.
The championship is seen as an attempt to revive interest in Test cricket, which has seen a decline in popularity in recent years. Test cricket is the oldest and most traditional format of the game, but it has been overshadowed by the shorter formats such as One Day Internationals (ODIs) and Twenty20 (T20) cricket.
The World Test Championship provides a clear incentive for teams to perform well in Test cricket, as the winner is crowned the world champions of the format. It also adds context and meaning to Test cricket, which can often seem like a series of standalone matches.
The first edition of the championship was initially scheduled to be held from 2017 to 2019, but was later postponed to 2019-2021 due to logistical and scheduling challenges. The championship was eventually won by India, who defeated New Zealand in the final held at the Rose Bowl in Southampton, England in June 2021.
The championship has received mixed reviews from cricket fans and experts. Some have praised it for adding meaning and context to Test cricket, while others have criticized it for its complex points system and lack of transparency.
Despite the criticisms, the championship is set to continue, with the second edition scheduled to be held from 2021 to 2023. It remains to be seen how the championship will evolve and whether it will be successful in its aim of reviving interest in World Test Championship