Engine Signals
Stockfish evaluation vs. human performance across 216 openings. Identifies where engine theory and human play diverge — useful for opening book construction and engine tuning.
Openings Evaluated
216
Engine depth 20 comparisons available.
Largest Human Outperformance
+8.52 pp
E98 — King's Indian Defense: Orthodox Variation, Classical System
Largest Engine Advantage
-11.02 pp
A44 — Benoni Defense: Old Benoni
Human vs Engine Win Probability
Delta = human win rate − Stockfish win probability (depth 20). Positive = humans outperform engine prediction. Top 12 per side by absolute delta. Tier-1 openings only.
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Greatest Engine–Human Gaps
Openings where engine evaluation most diverges from human outcomes. These are the positions most worth studying for engine book depth.
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Structural Break Events
Months where a win-rate regime change was detected. These often mark when a new engine line entered widespread human play. Dot size scaled by absolute engine evaluation (centipawns).