OHRA Chess Tournament Amsterdam 1989
OHRA Grandmaster Chess Tournament Amsterdam
OHRA Chess Tournament
OHRA Chess Tournament Amsterdam 1988
Puzzle piece - Cross Points
Interpolis Chess Tournament Tilburg 1982
Interpolis Chess Tournament Tilburg 1986
Hoogovens Chess Tournament - Wijk aan Zee
Draughts tournament Huissen
Haskoning Chess Tournament Nijmegen 1983