I Donostiako Aste Nagusiko Txapelketa 2026 takes place on August 8, 2026, in Donostia-San Sebastián, Spain. The event is a one-day blitz tournament organized by Gros Xake Taldea during the city’s Aste Nagusia period.

This is a chess tournament in Donostia-San Sebastián, Spain, in 2026. Players can enjoy a fast and competitive blitz chess tournament with 9 rounds, a 5 minutes + 3 seconds time control, and a compact Saturday morning schedule.

The tournament takes place at the Gros Chess Club premises inside the Frontón Karmelo Balda building. In addition, the event counts toward the Gros Challenge 2026, which connects several Gros Xake tournaments across the year.

♟️ Event Details

⏱️ Time Control & Pairings

The tournament uses a 9-round blitz format. Each player receives 5 minutes for the game, plus a 3-second increment per move.

The schedule moves quickly, with rounds planned every 20 minutes from 10:00 to 12:40. Therefore, players should arrive prepared and stay close to the playing area between rounds.

The event also counts toward the Gros Challenge 2026 standings. This gives players an extra competitive goal beyond the one-day prize table.

💰 Prize Fund

The confirmed cash prize fund is €1,500, approximately $1,755. All prize winners also receive a book as a gift.

Main Prizes

Special Prizes

🧩 Sections / Groups

The event runs as one open blitz tournament.

The tournament has a maximum capacity of 96 players.

📅 Schedule

📝 Registration

Players should complete registration before the deadline and include their full name in the payment reference. Since the field is limited, early registration can help secure a place.

🏛️ Organizer

Gros Xake Taldea organizes the I Donostiako Aste Nagusiko Txapelketa as part of its 2026 tournament program. The club is one of the active chess centers in Donostia-San Sebastián and runs events, training activity, and competitive chess programs throughout the year.

Email: xakegros@telefonica.net
Phone: +34 943 291 218

📍 Venue

Gros Xake Taldea, Paseo de Anoeta 20, 3rd floor, Frontón Karmelo Balda, 20014 Donostia-San Sebastián, Gipuzkoa, Spain

The tournament takes place at the Gros Chess Club premises in the Frontón Karmelo Balda building. Players should use the full Anoeta address for navigation and arrive early enough before the first round.

🚆 How to Get There

The venue is located in the Anoeta area of Donostia-San Sebastián. Players can reach the area by local public transport, taxi, or car from other parts of the city.

Players arriving from outside the city can travel first to Donostia-San Sebastián. After that, they can continue to Paseo de Anoeta and the Frontón Karmelo Balda building.

ℹ️ Other Information

The tournament forms part of the Gros Challenge 2026. The Challenge ranks players across four Gros Xake tournaments held during the year.

Challenge points depend on the final ranking of each event. The top three players in the overall Challenge standings receive €500, €300, and €200. In addition, players who complete all four Challenge tournaments enter a draw for a wooden chess set and a CE Premium clock.

I Donostiako Aste Nagusiko Txapelketa 2026 offers a lively blitz morning for players who want fast games, prizes, and a festive Donostia chess atmosphere.