arxiv
PublishedOctober 31, 2026 at 4:00 AM
RetroChessBench: A Benchmark for Reconstructing and Proving Chess Histories
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arXiv:2610.39341v1 Announce Type: cross Abstract: Frontier language models such as GPT 6 Astra have contributed to research mathematics, demonstrating substantial reasoning capabilities. Yet serious reasoning failures persist even in tasks governed by explicit rules. We demonstrate this in retrograd
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