The Official SED Crossword

It has now become a tradition to offer a crossword puzzle at every annual meeting. Attendants can work on them if the session get boring (rarely) or on their journey home after the meeting (more likely). If you did not have the luck to attend, you can still find the puzzles here. Good luck!

Costa Rica 2000
Stockholm 2001
New York 2002: Easy (tells if letter is right or wrong), Less easy (does not)
Paris 2003: Easy (tells if letter is right or wrong), Less easy (does not), facile (indique si la lettre est juste), moins facile (ne le fait pas).