IM Prin Laohawirapap (Thailand) beat GM Arjun Erigaisi (India) in round 1 of the 46th FIDE Chess Olympiad Samarkand 2026 (Open), in 54 moves.
The game turned on 50.Qg7. Before it, Stockfish had the position as level (0.00); one move later, winning for Black (-5.89). It was played with 3:38 left on the clock.
Stockfish wanted 50.Qf4 instead. Can you see why? And 50...Qh1+, the engine's best reply, came straight back.
The ratings said otherwise: Laohawirapap was 396 points lower. It began as the Queen's Pawn Game: Colle System.
Replay it move by move, then take the key position on against the engine.
- White
- GM Arjun Erigaisi, 2759 · India
- Black
- IM Prin Laohawirapap, 2363 · Thailand
- Result
- 0–1 in 54 moves
- Opening
- Queen's Pawn Game: Colle System · D04
- Event
- 46th FIDE Chess Olympiad Samarkand 2026, Open, Round 1 · Samarkand, Uzbekistan
- Key move: {0}
- 50.Qg7
- Engine’s choice
- 50.Qf4