Costa, Francisco Passos1954–Tay, Mason17491-0

World Youth Open U14 2026 · Round 10.50 · 2026.06.25 · C72 Ruy Lopez: Morphy Defense, Modern Steinitz Defense · head-to-head →

Stockfish 18 Lite1 threads

on-device engine · eval graph, accuracy, blunders

Open in explorer←/→ moves · ↑/↓ variations · drag pieces to branch