Klopfenstein, Francois1851Zenker, U20890-1

58th Biel Rapid Open · Round 2.27 · 2025.07.13 · C26 Bishop's Opening: Vienna Hybrid, Spielmann Attack · head-to-head →

Stockfish 18 Lite1 threads
on-device engine · eval graph, accuracy, blunders
Open in explorer←/→ moves · ↑/↓ variations · drag pieces to branch