if (window.location.hostname == "chessmind.ai" && !window.location.pathname.startsWith('/embed/')) { document.write('<iframe src="https://www.googletagmanager.com/ns.html?id=GTM-TS8C2C58" height="0" width="0" style="display:none;visibility:hidden"></iframe>'); }

Pan-American Championship Masters & Seniors 2026 · 65+ Round 4

Juan Koch (1991) vs Cassio Roberto Sopko (1807)

Board 11. Result: 1-0. 26 moves. Opening: Dutch Defense: Hopton Attack (A80).

Key moments

Move 13… Qa5 — decisive
Move 22. Ne5 — swing
Move 22… Nd7 — decisive