- Added solutions by Luca Ferrari.
- Added solutions by Aut0exec.
- Added solutions by W. Luis Mochan.
- Added solutions by Bob Lied.
- Added solutions by David Ferrone.
- Added solutions by E. Choroba.
- Added solutions by Mark Anderson.
- Added solutions by Robbie Hatley.
- Added solutions by Dave Jacoby.
- Added solutions by Thomas Kohler.
- Added solutions by Jaldhar H. Vyas.
- Added solutions by Peter Campbell Smith.
- Added solutions by Mariano Spadaccini.
- Added solutions by Jorg Sommrey.
- Added solutions by Pip Stuart.
- Added solutions by Simon Green.
- Added solutions by Laurent Rosenfeld.
- Added solutions by Ulrich Rieke.
- Added solutions by Robert DiCicco.