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FIDE ID 14101041· born 1971 · last updated 5/12/2026
FIDE standard
1993
FIDE rapid
2064
FIDE blitz
1998
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Shortlist public Lichess and chess.com accounts for Kostak via fuzzy name, country, and rating-band signals. Fastest path; works without sample games.
AI matching by sample game
Searching public databases for known games ofKostak…
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Real tournament games of Tetyana Kostak from public sources. Select a game to replay it on the board.
All games
+3 =3 -3 · score50% · 9 games
As White
+2 =1 -2 · score50% · 5 games
As Black
+1 =2 -1 · score50% · 4 games
Eberle, Triona(2058)
Kostak, Tetyana(2014)0-1
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As White
As Black
| Event | Games | Dates |
|---|---|---|
| Round 9: Kostak, Tetyana - Eberle, Triona | 1 | 2026-07-25 |
| Round 8: Kosovska, Olena - Kostak, Tetyana | 1 | 2026-07-24 |
| Round 7: Kostak, Tetyana - Khuong, Thi Hong Nhung | 1 | 2026-07-23 |
| Round 5: Kostak, Tetyana - von Beckh, Frieda | 1 | 2026-07-22 |
| Round 6: Bluebaum, Johanna - Kostak, Tetyana | 1 | 2026-07-22 |
| Round 4: Schirmbeck, Lilian - Kostak, Tetyana | 1 | 2026-07-21 |
| Round 3: Kostak, Tetyana - Voigt, Anastasia | 1 | 2026-07-20 |
Prep report
Their repertoire vs yours
Once you have a candidate account, we cross-reference its opening tree against your imported games, surfacing the lines they play that you don’t know, the leaks in their repertoire you can punish, and the gaps in yours you’ll need to plug before the game.
Pick a candidate account above to unlock the report.
| Round 1: Kostak, Tetyana - Lobe, Sandra, Dr. | 1 | 2026-07-19 |
| Round 2: Bardorz, Jana - Kostak, Tetyana | 1 | 2026-07-07 |
AI matching from found games
We already found 9 of Kostak ’s real games in public databases. No PGNs needed: one click shortlists public accounts with similar opening choices.
Sources:lichess_broadcast (9)- latest 7/25/2026
Helps match accounts whose display name is not written in Latin letters.
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