Le and Kosteniuk winners of the day
At the start of the classical phase, it was not only the decisive games in the Masters and the Generations Challenge that were exciting: both Yagiz Kaan Erdogmus in his game against Matthias Bluebaum and Vaishali Rameshbabu in her duel against Xiao Tong got into time trouble and had to find six precise moves under pressure. Both found good moves and drew – Vaishali even did so with the few seconds she had left to find the decisive move.
In less dramatic encounters, Le Quang Liem in the Masters and Alexandra Kosteniuk in the Generations Challenge section scored victories, both with the black pieces and made big jumps forward in the standings – not least because a win is worth 4 points and a draw only 1½ points in this section of the triathlons.
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Free video sample: Introduction
Free video sample: King’s Indian Setup

A view of the playing hall in Biel | Photo: Biel Chess Festival
Masters: Le now second behind Aronian
As the only winner of the day, the Vietnamese player naturally made a significant jump in the Masters standings, moving from penultimate place to second. Against Jose Martinez, Le, playing with black, showed excellent preparation and played his first 22 moves in under a quarter of an hour, while his opponent had already used 80 of his 120 minutes. The advantage Le had built up not only on the clock but also on the board was converted into a win after 36 moves, when his opponent resigned.
Levon Aronian remains at the top of the standings, after agreeing to a quick draw by repetition with Aydin Suleymanli in the duel between the two players who led the standings after the rapid section. Aronian thus retains the lead with 10½ points, while Suleymanli slips to third place on 7½ points. Le moved past him into second place, as he has half a point more than the Azerbaijani.
The remaining game of the day, between Matthias Bluebaum and Yagiz Kaan Erdogmus, also ended in a draw, a result that is unlikely to have been fully satisfactory for either player. Erdogmus got into serious time trouble in a position that did not particularly favour him, and had to play 17 moves in 7 minutes – the last 6 of them in under a minute. Nevertheless, he still managed to reach a winning position, but Bluebaum was able to steer the game into a threefold repetition!
Calculation is at the heart of practical chess. Every chess concept builds on proper calculation technique. Therefore, all chess players should continuosly train the fundamental techniques, concepts and patterns this course will present. The goal isn’t only to teach you to calculate, but to give you the tools and insights to keep improving long after the final lesson.
Free sample video: Introduction
Free sample video: Quiet Moves

Le Quang Liem was the only winner at the start of the classical section of the Masters | Photo: Biel Chess Festival
Round one results

All classical games – Masters
Addendum to the rapid tournament: Daniel King analyses Aronian v Bluebaum.
Generations Challenge: Draw at the top, Kosteniuk catches up
There was even more drama in the Generations Challenge: the two youngest players in the Challenge, Marco Materia and Vaclav Finek, agreed to a draw after several pieces had been exchanged – this after 27 moves. It was a satisfactory result for both, as it secured their top places in the standings. But the two youngsters had evidently forgotten the tournament regulations: these state that players may only agree to a draw after 40 moves at the earliest. So the two had to put the pieces back on the board and continue playing – before agreeing to a draw again after 40 moves.
The game between Xiao Tong and Vaishali Rameshbabu was more hectic: on move 29, Vaishali gained a bishop – but she had only 6 minutes left on the clock. The Indian player managed to make it to move 40, but she was unable to convert the position into a win.

The Swiss representative scored an important win with black against Carissa Yip: Alexandra Kosteniuk collected 4 points on Tuesday | Photo: Biel Chess Festival
Alexandra Kosteniuk was able to benefit from the two drawn games. The Swiss representative gradually took control of the game against Carissa Yip in the middlegame and built up a steadily growing advantage. After 58 moves, Yip had to resign. Thanks to this win, Kosteniuk gained ground in the standings and moved closer to the leading trio.
Round one results

All classical games – Generations Challenge
Still 16 players with perfect scores in the MTO
Already in the second round of the Biel Masters Open, some of the highest-rated players were strongly challenged by nominally weaker opponents: Indian GM Gopal G.N. had to settle for a draw against his compatriot WIM Ivana Maria Furtado, while German super-talent IM Christian Gloeckler also drew against CM Ling Chenxuan from the USA, who, born in 2014, is likewise a major promise for the future. Things went better for Gloeckler in his first-round game, which he analyses here for ChessBase:

A local player produced the biggest surprise: WGM Lena Georgescu from Bern defeated grandmaster Krishnan Sasikiran, a player rated almost 300 Elo points higher than her, in 38 moves | Photo: Biel Chess Festival
Standings MTO
| Pl. | SNo | Name | FED | RtgI | Pts. | ||
|---|---|---|---|---|---|---|---|
| 1 | 1 | GM | Ganguly, Surya Shekhar | IND | 2578 | 2 | |
| 2 | 2 | GM | Acs, Peter | HUN | 2561 | 2 | |
| 3 | 3 | GM | Ghosh, Diptayan | IND | 2554 | 2 | |
| 4 | 4 | IM | Aronyak, Ghosh | IND | 2549 | 2 | |
| 5 | 6 | GM | Kozak, Adam | HUN | 2531 | 2 | |
| 6 | 8 | GM | Alexakis, Dimitris | GRE | 2525 | 2 | |
| 7 | 10 | WGM | Shukhman, Anna | FID | 2443 | 2 | |
| 8 | 11 | IM | Baenziger, Fabian | SUI | 2435 | 2 | |
| 9 | 13 | IM | Lu, Miaoyi | CHN | 2392 | 2 | |
| 10 | 14 | IM | Savitha, Shri B | IND | 2368 | 2 | |
| 11 | 15 | IM | Cao, Qingfeng | CHN | 2365 | 2 | |
| 12 | 16 | Dong, Hongfu | CHN | 2353 | 2 | ||
| 13 | 17 | IM | Haimovich, Tal | ISR | 2310 | 2 | |
| 14 | 18 | WGM | Balabayeva, Xeniya | KAZ | 2302 | 2 | |
| 15 | 20 | CM | Pleschke, Julius Jonas | ESP | 2280 | 2 | |
| 16 | 29 | WGM | Georgescu, Lena | SUI | 2253 | 2 | |
| 17 | 7 | GM | Gopal, G.N. | IND | 2529 | 1.5 | |
| 18 | 9 | IM | Gloeckler, Christian | GER | 2506 | 1.5 | |
| 19 | 12 | IM | Elmi, Saad Abobaker | NOR | 2399 | 1.5 | |
| 20 | 19 | FM | Arsenie, Cristian Marc | SUI | 2300 | 1.5 |
Games MTO:
Surya Ganguly, the top seed in the MTO and on 2/2, had a conversation with Arne Kähler. | Video: ChessBase
Triathlons: Masters and Generations Challenge
| Date | 11-24 July 2026 |
| Format | Chess triathlons with 6 participants each |
| System | Classical: 5 rounds (first legs) + 3 rounds (final: return games with the top four players). Rapid: 5 rounds (with colours reversed from the classical first legs). Blitz: 10 rounds |
| Time control | Classical: 120′ for the first 40 moves, then 30′ for the rest of the game, with a 30” increment per move from move 41. Rapid: 15’+5” per move. Blitz: 3’+2” per move |
| Scoring | Classical: win 4 points; draw 1.5 points; loss 0 points. Rapid: win 2 points; draw 1 point; loss 0 points. Blitz: win 1 point; draw 0.5 points; loss 0 points. |
| Tiebreak | The final standings are determined by adding together the points scored in the three sections (classical+rapid+blitz). In the event of a tie, the final standings of the ACCENTUS Chess960 decide the ranking for the prizes. |
Schedule
| 10 July | 20:00 | Reception of participants – toast at the Congress Centre |
| 11 July | 11:30 | Opening ceremony at the Congress Centre |
| 11 July | 14:00 | ACCENTUS Fischer Random rapid tournament |
| 12 July | 14:00 | Rapid games of the Masters & Generations Challenge |
| 13 July | 14:00 | Visit to Omega with the Masters & Generations Challenge participants |
| 14-18 July | 14:00 | Classical games of the Masters & Generations Challenge |
| 19 July | 14:00 | Blitz games of the Masters & Generations Challenge |
| 20 July | Rest day | |
| 21-23 July | 14:00 | Final rounds of the Masters & Generations Challenge (classical games) |
| 24 July | 10:30 | Closing ceremony with prize-giving and apéritif at the Congress Centre |