World Open Shogi Championship (WOSC)
The World Open Shogi Championship is open to all players, regardless of their nationality or playing strength. The tournament is played using a 9-round MacMahon system, which ensures that players face opponents of similar strength in each round.
- Participants: Open to all players
- Tournament format: 9 rounds MacMahon system (Group Allocation Regulations).
- Time control: 45 min + 40 sec byoyomi
- Entry fee: 40€ (before June 1st) / 50€ (from June 1st)
- Registration deadline: August 4th, 2026, 18:00 GMT
Cancellation Policy
- Full Refund: Before June 1st (100% refund)
- Partial Refund: Until August 4th, 2026, 18:00 GMT (80% refund)
- No Refund: After August 4th, 2026, 18:00 GMT