Preprint
Aug 2026
Hallucinations on the Board: Tool-Augmented Evaluation of LLM Chess Commentary
This work presents ACT-Eval, an evaluation framework that decomposes chess commentary into atomic claims and routes them to engine-supported tools and expert-annotated gold references to assess factual correctness, conceptual coverage, and move-quality judgment.
S. A. Hebbar, Pei-Yao Sheng, Sewoong Oh et al.
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