Distances between 1500 and 1800 km.Via the mailman I received a QSL from MM0CAE today. I'm a member of the GQRP club and this club has a own QSL service between members.
This was from a 2 way QRP QSO in 2006.
73, Tjeerd (Gose) - PA3GNZ
Distances between 1500 and 1800 km.
All QSO's where made with SSB, the last one with just 5 watts, the others with 20 watts.
Worked with: UR5URW in KO50FF (ssb) and UX1BZ in KN29VA (cw). KN29 is a new square for me. 
2 qso's and both a new square. I'm waithing for the next Es opening on 6M, I hope signals will be stronger then today.