Duncan Dicks began one-handed solving during the Rubik's Cube craze of the early 1980s. He has stated:
In 1982 during the initial Rubik's craze a good friend of mine spotted that someone was claiming to be able to solve the cube behind their back in just two looks - and someone else was claiming a world record time for solving in one hand. We split the tasks and John White was soon the world record solver behind his back - one look in 20 minutes. I attended a competition where the one handed solver broke his own record (at around 80 seconds) and I then beat that in 52.7 seconds. The one and only competition I attended but that record stood until 2003! Sadly both records have been well and truly beaten by some fantastic speedcubers around at the moment.
It is likely that Dicks actually began one-handed solving in 1981, since David Singmaster mentions John White's "behind his back" skills in late 1981. Furthermore Singmaster reports that the one-handed solver who inspired Dicks was "Richard Hodson, of Queen Mary's Grammar School, Walsall, [who] can do a Cube one-handed in 89 seconds." The competition Dicks competed in was apparently a charity cube-contest which Singmaster attended in Birmingham on 15 May 1982. Singmaster reports that "Richard Hodson improved his one-handed time to 77.50 sec., but Duncan Dicks, a 2nd year student at Warwick University, did 59.32 and 53.29 sec."
Duncan Dicks was still actively cubing (including one-handed) in the 2000s. In 2004 he proposed a sequence of L2L (L2L1 through L2L4) methods on the Yahoo! speedsolving group. The method is an extension and variation on the keyhole method. There are 4 substeps to be learned, each can be learned individually without knowledge of the others and provide a fast method, or all of them can be learned for the most advanced version: L2L4. Dicks found many algorithms, while Richard Carr also provided several. Dicks himself credits Gustav Fredell for many "improved algorithms for L2L4 making it a much more viable strategy."
- Cubert's Cubicle - Duncan Dicks' website, 2008 snapshot, at the Internet Archive