Female
FIDE ID:
Tatiana Kostak
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| ch-GER Women 2025 | 05/15/2025 | 2247 |  Germany |
| grenke Chess Open 2025 | 04/17/2025 | 2275 | Germany |
| UKR Games (Women) 3rd | 05/21/2007 | 1888 |  Ukraine |
| UKR-ch sf (Women) | 04/30/2007 | 1647 | Ukraine |
Tatiana Kostak Opening Repertoire with White pieces
| ECO | Opening | Games |
| E76 | King's Indian, Four pawns attack | 2 games |
| A69 | Benoni, four pawns attack, main line | 2 games |
| B13 | Caro-Kann, exchange variation | 2 games |
| D34 | Queen's Gambit Declined, Tarrasch, Prague variation, 7...Be7 | 1 games |
Tatiana Kostak Opening Repertoire with Black pieces
| ECO | Opening | Games |
| B76 | Sicilian, dragon, Yugoslav attack, 7...O-O | 4 games |
| A57 | Benko gambit | 2 games |
| B00 | King's pawn opening | 2 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 2 games |
