International Online Chess Business League is a system of online chess tournaments among enterprises.

Each tournament within the League unites chess fans of a particular industry.

The strongest teams at the end of each of these tournaments get into the final tournament, where they find out the "best of the best". At the moment, more than 600 (!) teams of enterprises from Russia, Kazakhstan, Serbia, Uzbekistan, Moldova, Azerbaijan and Kyrgyzstan have already taken part in the League tournaments