Ukraine’s Anna Muzychuk defeated Russia’s Kateryna Lagno in Round 4 of the Women’s Candidates 2026, with no handshake or acknowledgement reflecting ongoing geopolitical tensions. Muzychuk’s precise play exploited Lagno’s critical error on move 28, winning in 31 moves. The victory puts Muzychuk atop the leaderboard with 2.5 points, tied with Bibisara Assaubayeva.