[KongchangAI]
Unverified50% confidenceFactExact time

Nonobench hard mode contains ten randomly generated 20×20 large grids, each validated to ensure a unique solution, with five of them unsolvable by line logic alone.

1
Sources
50%
Confidence
Long-term
Relevance
10/4/2026
First Seen

Sources

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MCP
get_claim(id=973736)