Vincent Keymer seized sole first place at the Super Chess Classic Romania 2026 after four rounds, capitalizing on a bold opening decision that caught Maxime Vachier-Lagrave off guard. Keymer allowed his opponent to play the Najdorf against him for the first time ever. The gambit worked.

The tournament lost momentum when Alireza Firouzja missed round four due to a medical issue. Details on the nature of the problem remain unclear, but his absence created an unexpected gap in the competition. The top boards suddenly had one fewer decisive game to analyze.

Keymer's willingness to enter unfamiliar territory against Vachier-Lagrave shows confidence in his preparation and tactical skills. Rather than sticking to familiar anti-Najdorf setups, he invited complexity. That decision demonstrates how modern super-GMs are willing to take calculated risks when the payoff justifies it.

The Romanian event remains wide open despite Keymer's lead. With half the tournament likely remaining, any of the top contenders can still claw back. Firouzja's return will add teeth back to the field once he resolves his medical situation. The real tournament starts now.