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See it for yourselfAbout this chess game
This chess game between Jonas Hacker (2342) and Klaus Weissenbach (1950) was played at 7. Bamberg Open 2025 in 2025 and finished 1-0. The opening was the Semi-Slav Defense: Accelerated Meran Variation (D45).
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 Jonas Hacker games or Klaus Weissenbach games? This Jonas Hacker vs Klaus Weissenbach 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 Semi-Slav Defense: Accelerated Meran Variation.
Frequently asked questions
Who won Jonas Hacker vs Klaus Weissenbach?
Jonas Hacker vs Klaus Weissenbach (2025) finished 1-0, a win for Jonas Hacker.
What opening was played in Jonas Hacker vs Klaus Weissenbach?
The game opened with the Semi-Slav Defense: Accelerated Meran Variation (ECO D45).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Jonas Hacker vs Klaus Weissenbach, or open it on the CipherChess analysis board to review it with the Stockfish engine.