Don't just replay it. Break it down.
You just replayed Jason Lammert vs Lasse Sonne. 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 Jason Lammert (1726) and Lasse Sonne (1929) was played at Reykjavik Open 2025 in 2025 and finished 0-1. The opening was the Scotch Game (C45).
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 Jason Lammert games or Lasse Sonne games? This Jason Lammert vs Lasse Sonne 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 Scotch Game.
Frequently asked questions
Who won Jason Lammert vs Lasse Sonne?
Jason Lammert vs Lasse Sonne (2025) finished 0-1, a win for Lasse Sonne.
What opening was played in Jason Lammert vs Lasse Sonne?
The game opened with the Scotch Game (ECO C45).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Jason Lammert vs Lasse Sonne, or open it on the CipherChess analysis board to review it with the Stockfish engine.