Mezue ahịrịokwu na-esonụ: Sosonko gbara bọọlụ maka ndị otu Dutch na Chess Olympiad ugboro iri na otu, n'afọ 1974-84, na 1988-96. O nwetara ihe nrite abụọ: ọlaedo na
Haifa 1976, ọla nchara na Nice 1974, na ọla abụọ: ọlaọcha na Haifa 1976, na ọla nchara na Thessaloniki 1988.