All(172), Audio(4), CGX(4), Coding(20), Cracking(10), Crypto(26), Encoding(15), Exploit(60), Forensics(1), Fun(10), HTTP(10), Image(8), Java(3), Javascript(1), Linux(9), Logic(6), Math(7), MySQL(16), Network(1), PHP(27), Python(2), Realistic(6), Regex(2), Research(7), Shell(2), Simulated(1), Special(11), Stegano(25), Storyline(4), Training(39), Unknown(2), Warchall(11), Windows(1), XSS(2)