Hafner, R2011–Costello, C1917½-½
13th Int Senioren-Cup · Round 5.28 · 2025.04.02 · D05 Queen's Pawn Game: Colle System · head-to-head →
Stockfish 18 Lite1 threads
on-device engine · eval graph, accuracy, blunders
Open in explorer←/→ moves · ↑/↓ variations · drag pieces to branch