[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

3x3至5x5难度适合学龄前至低年级儿童入门,7x7及以上对成人也有一定挑战;若孩子年龄过小(4岁以下)认数不全则无法使用

1
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85%
Confidence
Long-term
Relevance
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https://kongchang.com/claim/777827
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curl https://kongchang.com/api/v1/knowledge/claims/777827
MCP
get_claim(id=777827)