This is the archived CodeCup 2021 website.
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CodeCup 2021 - An online programming competition  

CodeCup 2021 - An online programming competition

Welcome to CodeCup!

We offer you a challenging programming contest. Anybody can participate; there are no age restrictions or other special requirements. The CodeCup never charges entry fees.

In 2021 the game for the contest is Zuniq. We have placed a description of the rules online. You can always watch a sample game being played.


After you login in to the CodeCup system you can submit your program. You can find the submission section under "My submissions". Your submission will be tested automatically against our sample players to ensure that it follows the rules. After passing this check your program is ready to compete! Note that your program must be capable of playing both as white and black.

We will hold test competitions every three weeks starting at the end of September. In these competitions you will see how your program performs against other players. You can follow the complete games and use this information to improve your strategy.

The official Zuniq competition has been played on January 23rd 2021. You can go directly to the final ranking of the programs.

Testing at home - Caia

The CodeCup Team enables you to test your program at home. Our testing software is free and enables you to organize competitions at home without involvement of other people. The software to play at home is called Caia. It works in the same way as our contest software. By hosting your own local competition you can test and improve your program in a fast and easy way. Download Caia and start today!


On 23 January the CodeCup final 2021 was played. Looking at the lastest test competitions, it maybe is a small surprise that Abdessamad El Kasimi won the competition. But, he did win the CodeCup now for the fourth time. Congratulations to Abdessamad! Nevertheless, though Tomek Czajka remains the overall winner with five victories. We think we had a really exciting game for this year's competition. There were so much programming possibilities en tricks, that it was hard (or easy) to produce a good strong player. We had so much fun with it. For the Dutch students competition we had 20 participants. The latest test competitions were won by upcoming youngster Emil Riedeman. But also in the final competition he managed to beat the last year's winner Marco Meijer with a big margin. Congratulations to Emil! During the lockdown situation in December we worked on the new CodeCup game 2022. Everything is done and the only thing we have to do is to pubish. We think we have, again, an interesting game for you. We will publish in April. For next year we will keep the 10 new backend servers standby and we will allow your program to use 2 GB of memory!