CodeCup 2023 - An online programming competition  

CodeCup 2023 - 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 2023 the game for the contest is Entropy. 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 chaos and order.

We will hold test competitions every three weeks starting Augustus 20th. 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 next test competition has been scheduled for December 3rd 2022.

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!


We proudly announce the new CodeCup game Entropy 2023. The full package, including Caia, is now online. It is a game in which you play either with the player Chaos, creating as much as possible chaos possible, or play with the player Order, in which you try to create as much as possible order possible. The chips that are given to Chaos to create chaos are given in random order! The final competition will be held on 21 January 2023. We hope you enjoy Entropy.