Kostowski, I
Last game 2025
Games
9
Wins
4
Draws
1
Losses
4
Peak Elo
1886
50.0% score
As White
| A45 | Indian Defense: Accelerated London System | 2 | 25.0% |
As Black
| B01 | Scandinavian Defense: Portuguese Gambit, Correspondence Refutation | 3 | 66.7% |
Recent games
| Kostowski, I1886 | 0-1 | Trybus, Dominika1870 | Rubinstein Mem Open B | 2025 |
| Bednarski, Jan1787 | 0-1 | Kostowski, I1886 | Rubinstein Mem Open B | 2025 |
| Kostowski, I1886 | 1-0 | Szwed, Karol1798 | Rubinstein Mem Open B | 2025 |
| Jamka, Wojciech1701 | 1-0 | Kostowski, I1886 | Rubinstein Mem Open B | 2025 |
| Kostowski, I1886 | 1-0 | Komendecki, Grzegorz1832 | Rubinstein Mem Open B | 2025 |
| Wojtowicz, Marek1804 | 1-0 | Kostowski, I1886 | Rubinstein Mem Open B | 2025 |
| Kostowski, I1886 | ½-½ | Soszka, Szymon1801 | Rubinstein Mem Open B | 2025 |
| Hampel, Anna1800 | 0-1 | Kostowski, I1886 | Rubinstein Mem Open B | 2025 |
| Kostowski, I1886 | 0-1 | Ratajek, Krzysztof1769 | Rubinstein Mem Open B | 2025 |