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You just replayed Si Bjornsson vs Halldor Stefansson. 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 (2291) and Halldor Stefansson (1455) was played at Icelandic Open 100yr 2025 in 2025 and finished 0-1. The opening was the Italian Game: Two Knights Defense, Polerio Defense (C58).
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 Halldor Stefansson games? This Si Bjornsson vs Halldor Stefansson 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 Italian Game: Two Knights Defense, Polerio Defense.
Frequently asked questions
Who won Si Bjornsson vs Halldor Stefansson?
Si Bjornsson vs Halldor Stefansson (2025) finished 0-1, a win for Halldor Stefansson.
What opening was played in Si Bjornsson vs Halldor Stefansson?
The game opened with the Italian Game: Two Knights Defense, Polerio Defense (ECO C58).
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 Halldor Stefansson, or open it on the CipherChess analysis board to review it with the Stockfish engine.