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See it for yourselfAbout this chess game
This chess game between Marcin Sieciechowicz (2395) and Mari Bosiocic (2542) was played at 57th TCh-ITA Abruzzo 2026 in 2026 and finished 0-1. The opening was the Nimzo-Indian Defense (E20).
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 Marcin Sieciechowicz games or Mari Bosiocic games? This Marcin Sieciechowicz vs Mari Bosiocic 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 Nimzo-Indian Defense.
Frequently asked questions
Who won Marcin Sieciechowicz vs Mari Bosiocic?
Marcin Sieciechowicz vs Mari Bosiocic (2026) finished 0-1, a win for Mari Bosiocic.
What opening was played in Marcin Sieciechowicz vs Mari Bosiocic?
The game opened with the Nimzo-Indian Defense (ECO E20).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Marcin Sieciechowicz vs Mari Bosiocic, or open it on the CipherChess analysis board to review it with the Stockfish engine.