BCTF CTF write-ups http://bctf.cn/ Scoreboard or local alternative Number of solves per task Completed write-ups none yet External write-ups only crypto/backdoor crypto/warmup crypto/weak-enc crypto/redundant-code exploit/drunk exploit/pattern exploit/qoobee exploit/zhongguancun programming/experiment reverse/camlmaze reverse/freak reverse/securecom trivial/checkin web/sqli-engine web/torrent-lover web/webchat Missing write-ups misc/broken-oj reverse/crappy_oj