Petar Smederevac vs Piet van der Weide
Amsterdam IBM-B Amsterdam NED round 6 1967.07.24
English Opening: Symmetrical Variation, Fianchetto Variation 1-0

Piet van der Weide vs Leo J Kerkhoff
NED-ch Leeuwarden NED round 1 1970.03.23
Bishop’s Opening: Vienna Hybrid, Hromádka Variation 1/2-1/2

Christofoor Baljon vs Piet van der Weide
NED-ch Leeuwarden NED round 4 1976.04.19
Philidor Defense 1-0