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| Country | Chess tournament name | Start | End |
|---|---|---|---|
 |
Biel Chess Festival 2025 Challengers Qualifier | 2025-07-15 | 2025-07-19 |
|
Biel Chess Festival 2025 Challengers Final | 2025-07-22 | 2025-07-24 |
|
Biel Chess Festival 2025 Challengers Rapid | 2025-07-13 | 2025-07-13 |
|
Biel Chess Festival 2025 Challengers Blitz | 2025-07-20 | 2025-07-20 |
|
Biel Chess Festival 2025 ACCENTUS Chess960 Challengers | 2025-07-12 | 2025-07-12 |