PASTPAPER.CN
Free download platform for 70+ international competitions including AMC / Physics Bowl / BPhO
Free collection of official past papers and resources from 70+ authoritative international competitions including AMC, Physics Bowl, BPhO, USABO, UKChO, and NEC. High-quality watermark-free PDF downloads with answer keys, scoring guides, and project materials to help students worldwide prepare efficiently.
历年官方真题下载专区
收录 70+ 国际竞赛项目，覆盖近 20 年官方真题、答案解析与评分参考。
全部大类竞赛
为您检索到对应分类下的真题共 0 份，均可按权限获取高清 PDF 下载
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Core Advantages
Focused on international competition past papers — free, comprehensive, timely, and professional — helping students worldwide aim for gold medals
Comprehensive Coverage · All Major Competitions
Free collection of past papers and resources from AMC, AIME, Physics Bowl, BPhO, USABO, UKChO, NEC and other major international competitions, with quick search and download by competition name, year, and subject.
Timely Updates · Aligned with Global Seasons
Stay current with the latest global competition seasons. New past papers and solutions go live within 24 hours so users can access the freshest materials first.
Detailed Solutions · Efficient Preparation
Every past paper includes answer keys, detailed solutions, scoring rubrics, and reference materials. High-quality watermark-free PDF downloads help users understand key concepts and problem-solving strategies.