46th FIDE Chess Olympiad 2026 · Open Round 5
FM Shou Otsuka (2314) vs Riccardo Costalonga (2184)
Board 2, Japan – Monaco. Result: 0-1. 28 moves. Opening: Sicilian Defense: Four Knights Variation (B45).
Key moments
- Move 13. a3 — swing
- Move 19. Rxd5 — blunder