Japan Chess Championship 2026 – The 27th Argentina Cup – takes place from May 2-6, 2026, in Tokyo, Japan. This is a chess tournament in Tokyo, Japan, in 2026. The event is the national over-the-board chess tournament of Japan and features a 9-round classical chess tournament format with a time control of 90 minutes plus a 30-second increment from move one. Shinagawa Ward General Kumin Hall “Curian” hosts the competition, and the tournament offers a confirmed cash prize fund of about USD 1,760.

Moreover, this chess tournament in Tokyo brings together seeded players for one of the country’s most prestigious annual events. The Japan Chess Championship 2026 also carries both FIDE and national standard rating, uses one unified section without class splits, and awards the title of Japan Chess Champion together with the Argentina Cup. As a result, this chess event in Tokyo stands out as a top-level FIDE rated chess tournament in Japan’s 2026 calendar.

🗓️ Event Details

🏆 Prize Fund

The total confirmed cash prize fund is JPY 260,000.

In addition, the event awards a plaque and a ChessMood prize to the top woman, top youth under 18, and top senior over 50. Chess.com membership prizes also go to the top 10 non-title holders from CM or WCM level upward. The winner receives the title of Japan Chess Champion and the Argentina Cup.

⏱️ Time Control & Pairings

The championship uses a 9-round Swiss system with one single section. Each player receives 90 minutes for the game plus a 30-second increment from move one. Therefore, the event offers a full classical chess tournament structure across five days in Tokyo.

In addition, the event counts for both FIDE and national standard rating. Because the championship is played in one unified field, there are no class divisions. This creates a direct national championship format for the seeded participants.

📂 Sections / Groups

The tournament is played as one main championship section without class divisions. Entry is limited to seeded players who qualify for Japan Chess Championship 2026 and hold Japan Chess Federation membership.

📅 Schedule

📝 Registration

👥 Organizer

Japan Chess Federation organizes this national championship and continues to run the country’s top official chess events. In addition, the federation manages seeding, registration, pairings, and event administration for leading players across Japan.

• Email: japanchess.info@gmail.com

• Website: https://japanchess.org/

🏨 Venue

Shinagawa Ward General Kumin Hall “Curian”, 5-18-1 Higashi-Oi, Shinagawa-ku, Tokyo, Japan

The championship takes place at Curian in Shinagawa. Moreover, the venue sits in a practical Tokyo location for a multi-day national event. Players also benefit from direct rail access through a nearby major station.

🚗 How to Get There

The venue is about a 2-minute walk from Oimachi Station on the JR Keihin-Tohoku Line, Tokyu Oimachi Line, and Rinkai Line. Therefore, players can reach the tournament hall easily from different parts of Tokyo by rail.

🧾 Other

Following the prize giving ceremony, the Argentine Ambassador will host a reception at the venue for the award winners. In addition, the organizer noted that prizes from the Embassy of Argentina would be added later.

Compete in Tokyo and follow one of Japan’s most important chess events of 2026 in a prestigious national championship setting.