Database Round 1: Zwirs, Nico - Korneev, Oleg Nico Zwirs ½-½ Oleg Korneev Round 1: Zwirs, Nico - Korneev, Oleg Round 1.3 September 19, 2026 C67 Ruy Lopez: Berlin Defence, Rio Gambit Accepted GM Oleg Korneev 2436 8 7 6 5 4 3 2 1 a b c d e f g h IM Nico Zwirs 2442 63 / 63