Some of you remember my cg-arena tool to run multiple games in local. Forget it. cg-arena is dead.
Here come cg-brutaltester. Why creating cg-brutaltester instead of just improving cg-arena ? Because cg-arena has a big problem, the referee are coded in java directly in cg-arena. But now CodinGame gives the referee code for the contest. And there's no guarantee that the referees will always be coded in Java.
cg-brutaltester take the referee as an external process, exactly like the players codes. This say, cg-brutaltester can accept any runnable referee and players codes. In any langage. If you can run a code with a simple command line, cg-brutaltester can run it too.
It is also easier to create your own referee for cg-brutaltester. See the readme file for more informations.
Keep in mind that cg-brutaltester is slower than Agade Ghost in the Cell arena. Java will always be slower than C++. But cg-brutaltester is already prepared for the future ! If CodinGame give the next contest referee the same way they did for Ghost in the Cell, it will take something like 30 minutes to code a compatible referee for cg-brutaltester.