Winners Challenge Six

Congratulations to all of you who tried Challenge six. It was pretty tough and you did very well. We are pleased to announce the prize winners for that Challenge. As usual each team listed here wins 50:

The L33t H4x0rz of Varndean College,Brighton
Jan Gondzio of James Gillespie's High School,Edinburgh
Timothy Palmer of Haybridge High School,Stourbridge
Lucy Payne of St. Anne's Convent School,Southampton
Karim M Ladhu of North London Tutorial College, London