s <a href="https://aclanthology.org/P02-1040.pdf">Bilingual Evaluation Understudy (BLEU) (Papineni, Roukos, Ward &amp; Zhu, 2002)</a> for evaluation, and while these can be useful in context-free scenarios where there is a best answer, they can also lead to degenerate results when misapplied. On top of natural-language difficulties, high-quality commentary requires proportionate skill in, and knowledge of, chess.</p>
        <p>An ideal way to generate lateral-language commentary would be to use a process l