The 24th Computer Olympiad was held online during August/September 2021. With 60 participants competing in 22 events, the event was a success. This raises the question as to whether the ICGA and its members are best served by having future Olympiads online or returning to the in-person format.

The 25th Computer Olympiad was held online during July/August 2022. With 53 participating programs competing in 18 events, the event was a success.

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This paper is concerned with novel information dynamic models and their application. The first model is relating to certainty of game outcome, and the second one is to the uncertainty. They have been applied to Shogi and Soccer. It is found that these models are useful for visualizing the detail processes in the game, such as the quality of entertainment, game pattern, together with time dependency of the advantage and winning rate. It is suggested that FIFA Women's World Cup Germany 2011 Final is a typical balanced game in which Japan got the win against USA, but fighting spirit of Japanese players was slightly stronger than that of American players.