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You just replayed Isaac (Yijun) Wang vs Chatterjee Koustav. 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 Isaac (Yijun) Wang (1582) and Chatterjee Koustav (2475) was played at 35. North American Open in 2025 and finished 0-1. The opening was the Queen's Gambit Declined: Ragozin Defense (D38).
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 Isaac (Yijun) Wang games or Chatterjee Koustav games? This Isaac (Yijun) Wang vs Chatterjee Koustav 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 Queen's Gambit Declined: Ragozin Defense.
Frequently asked questions
Who won Isaac (Yijun) Wang vs Chatterjee Koustav?
Isaac (Yijun) Wang vs Chatterjee Koustav (2025) finished 0-1, a win for Chatterjee Koustav.
What opening was played in Isaac (Yijun) Wang vs Chatterjee Koustav?
The game opened with the Queen's Gambit Declined: Ragozin Defense (ECO D38).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Isaac (Yijun) Wang vs Chatterjee Koustav, or open it on the CipherChess analysis board to review it with the Stockfish engine.