Don't just replay it. Break it down.
You just replayed Ethan Sonntag vs B Portorose. 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 Ethan Sonntag and B Portorose was played at Solingen in 1990 and finished 0-1. The opening was the Slav Defense: Three Knights Variation (D15).
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 Ethan Sonntag games or B Portorose games? This Ethan Sonntag vs B Portorose 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 Slav Defense: Three Knights Variation.
Frequently asked questions
Who won Ethan Sonntag vs B Portorose?
Ethan Sonntag vs B Portorose (1990) finished 0-1, a win for B Portorose.
What opening was played in Ethan Sonntag vs B Portorose?
The game opened with the Slav Defense: Three Knights Variation (ECO D15).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Ethan Sonntag vs B Portorose, or open it on the CipherChess analysis board to review it with the Stockfish engine.