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You just replayed Si Bjornsson vs Jason Cigan. 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 Si Bjornsson (2303) and Jason Cigan (2044) was played at Reykjavik Open 2025 in 2025 and finished 0-1. The opening was the Ruy Lopez: Morphy Defense (C78).
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 Si Bjornsson games or Jason Cigan games? This Si Bjornsson vs Jason Cigan 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 Ruy Lopez: Morphy Defense.
Frequently asked questions
Who won Si Bjornsson vs Jason Cigan?
Si Bjornsson vs Jason Cigan (2025) finished 0-1, a win for Jason Cigan.
What opening was played in Si Bjornsson vs Jason Cigan?
The game opened with the Ruy Lopez: Morphy Defense (ECO C78).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Si Bjornsson vs Jason Cigan, or open it on the CipherChess analysis board to review it with the Stockfish engine.