Koska, Jiri
Last game 2026
Rating
peak 2035 · latest 2035Games
17
Wins
6
Draws
4
Losses
7
Peak Elo
2035
47.1% score
As White
| A05 | King's Indian Attack | 3 | 50.0% |
| A04 | Zukertort Opening: Sicilian Invitation | 2 | 50.0% |
| A34 | English Opening: Symmetrical Variation, Fianchetto Variation | 2 | 50.0% |
As Black
| C00 | French Defense: La Bourdonnais Variation | 2 | 50.0% |
Recent games
| Skyba, Andrej1868 | 1-0 | Koska, Jiri2035 | Slovakia Chess Open 2026 | 2026 |
| Koska, Jiri2035 | 0-1 | Jares, Michal2310 | Slovakia Chess Open 2026 | 2026 |
| Lenartova, Klara1602 | 0-1 | Koska, Jiri2035 | Slovakia Chess Open 2026 | 2026 |
| Koska, Jiri2035 | 1-0 | Kollarik, G1726 | Slovakia Chess Open 2026 | 2026 |
| Ondreicka, Roman1756 | ½-½ | Koska, Jiri1913 | LJ Slovakia Open 2024 | 2024 |
| Koska, Jiri1913 | ½-½ | Ostruzlik, Kristian1762 | LJ Slovakia Open 2024 | 2024 |
| Bracok, Stefan1824 | ½-½ | Koska, Jiri1913 | LJ Slovakia Open 2024 | 2024 |
| Koska, Jiri1913 | 0-1 | Zvarik, M2184 | LJ Slovakia Open 2024 | 2024 |
| Koren, Juraj1712 | 0-1 | Koska, Jiri1913 | LJ Slovakia Open 2024 | 2024 |
| Koska, Jiri1913 | ½-½ | Zentko, L1734 | LJ Slovakia Open 2024 | 2024 |
| Panko, Eduard ml.2100 | 1-0 | Koska, Jiri1913 | LJ Slovakia Open 2024 | 2024 |
| Koska, Jiri1913 | 1-0 | Foldesi, Jan1556 | LJ Slovakia Open 2024 | 2024 |
| Koska, Jiri1856 | 0-1 | Chrz, P1986 | 33rd Czech Rapid G1 2022 | 2022 |
| Melichar, Vojtech1907 | 1-0 | Koska, Jiri1856 | 33rd Czech Rapid G1 2022 | 2022 |
| Koska, Jiri1856 | 0-1 | Akesson, R2427 | 33rd Czech Rapid G1 2022 | 2022 |