Math supervised-fine-tuning set of 292,375 short chain-of-thought solutions,
derived from the math.jsonl split of
a-m-team/AM-Qwen3-Distilled
(teacher: Qwen3-235B-A22B, upstream-verified with Math-Verify).
Each solution is reassembled into the official Qwen3 convention
\n…\n\n\n{answer with \boxed{}} for chat-template SFT.
