CodeCup 2016 - An online programming competition  

CodeCup 2016 - 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 2015 the game for the contest is 6561. 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 black and white.

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 next test competition has been scheduled for December 5th 2015.

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!


The CodeCup game 2016 is called 6561 and is inspired on the game 2048. We developed this game in December 2014. It could be played with more than two players, but we decided not to do introduce this novelty this year. This version of the game is played with three colors and this game is cooperative! You and the other player must try to achieve together the highest score. We've tested this idea and we think it really works well. We hope you will experience the same... Enjoy!

We applied a small change in the technical rules. We have decided that your program may use up to 60 seconds of running time. We have updated the website for this. Also the sample game is published. So you can have a look, a feel and a touch of 6561! The tarballs will be very soon online. We also have opened a new thread in the forum for 6561. And we have moved two discussions to the new thread due to this.