GM Wesley So (United States of America) beat GM Anton Korobov (Ukraine) in round 4 of the 46th FIDE Chess Olympiad Samarkand 2026 (Open), in 35 moves.
The game turned on 27.Bd4. Before it, Stockfish had the position as a small edge for Black (-1.11); one move later, winning for Black (-2.56).
Stockfish wanted 27.Qa4 instead. Can you see why? And 27...Rg5, the engine's best reply, came straight back.
It began as the Italian Game: Classical Variation, Giuoco Pianissimo.
Replay it move by move, then take the key position on against the engine.
- White
- GM Anton Korobov, 2610 · Ukraine
- Black
- GM Wesley So, 2774 · United States of America
- Result
- 0–1 in 35 moves
- Opening
- Italian Game: Classical Variation, Giuoco Pianissimo · C54
- Event
- 46th FIDE Chess Olympiad Samarkand 2026, Open, Round 4 · Samarkand, Uzbekistan
- Key move: {0}
- 27.Bd4
- Engine’s choice
- 27.Qa4