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You just replayed T Kostak vs Fiona Sieber. On CipherChess, the same board opens up any game — check every move against the engine, prep the players you're about to face, and keep it all in one place that follows you everywhere.
See it for yourselfAbout this chess game
This chess game between T Kostak (2092) and Fiona Sieber (2232) was played at ch-GER Women 2025 in 2025 and finished ½-½. The opening was the Sicilian Defense: Old Sicilian (B30).
You can replay the full game move by move on the interactive board above, or open it on the CipherChess analysis board to study every move with the Stockfish engine.
Looking for more T Kostak games or Fiona Sieber games? This T Kostak vs Fiona Sieber encounter is one of millions of chess games indexed in the CipherChess mega database. Browse both players' full records, the openings they play most, and head-to-head results, then load any game onto the board to prepare your own lines against the Sicilian Defense: Old Sicilian.
Frequently asked questions
Who won T Kostak vs Fiona Sieber?
T Kostak vs Fiona Sieber (2025) finished ½-½, and the game was drawn.
What opening was played in T Kostak vs Fiona Sieber?
The game opened with the Sicilian Defense: Old Sicilian (ECO B30).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of T Kostak vs Fiona Sieber, or open it on the CipherChess analysis board to review it with the Stockfish engine.