The system: best 8 or 16 national teams play a three or four round knockout, depending on a number of national teams registered, and they compete for a "Nations' Cup". For a player to play in a national team, he or she must have his country's citizenship.

All other teams play the open section, they can consist of players from more than one country

Team composition:

• Teams are composed of between 5 and 8 players. Each round 5 players play.
• Each team must include at least a female player and a youth player (U18) which are separate people
• Professional players are allowed to play.
• All 5 boards are ordered by rating, professional players must play in the top boards and can order freely among them.
• A team level is computed by averaging the 5 top players level. In this regard professional players count as 8 dan.

Tournament organization (top section and open section):

The 8 or 16 strongest teams play in the top section in a cup tournament, eliminated teams join the open section. Other teams play in the open section, the open section is played using a MacMahon system.

Details:

Rules : japanese rules

Rating : C class

Rounds : 4

Time Setting : Fischer Time 20 min + 10 sec

Board size : 19x19

Handicap : no

Komi : 6.5

Referee: Maksym Wałaszewski