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 | EK Landenteams Follonica Buitenland 2023 |
| Mariusz Slezak Uitslagen: |  |
| Teamwedstrijd | Bord | Wedstrijd | Uitslag | ||||||||||
| ma 12-06-2023 | Poland | - | Italy 2 | 3 | Mariusz Slezak (2157) | - | Matteo Fortunato (2008) | 2 | - | 0 | Partij | ||
| ma 12-06-2023 | Lithuania | - | Poland | 3 | Edvard Buzinskij (2295) | - | Mariusz Slezak (2157) | 1 | - | 1 | Partij | ||
| wo 14-06-2023 | Poland | - | Netherlands | 1 | Mariusz Slezak (2157) | - | Pim Meurs (2379) | 0 | - | 2 | Partij | ||
| wo 14-06-2023 | Italy | - | Poland | 1 | Claudio Ciampi (2052) | - | Mariusz Slezak (2157) | 0 | - | 2 | Partij | ||
| do 15-06-2023 | Poland | - | Ukraine | 1 | Mariusz Slezak (2157) | - | Artem Ivanov (2358) | 0 | - | 2 | Partij | ||
| vr 16-06-2023 | France | - | Poland | 3 | Andre Bercot (2169) | - | Mariusz Slezak (2157) | 1 | - | 1 | Partij | ||