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 residency or nationality,

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