[KongchangAI]
Unverified60% confidenceFactExact time

The PGN format was established by Steven Edwards in 1993 and is a universal open standard in the chess domain that stores game information in plain text

2
Sources
60%
Confidence
Long-term
Relevance
7/15/2026
First Seen

Sources

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https://kongchang.com/claim/523966
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curl https://kongchang.com/api/v1/knowledge/claims/523966
MCP
get_claim(id=523966)