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Correspondence Chess: Ivar Bern vs Joop Van Oosterom - ICCF Olympiad 15 Final 2006 - KID (E94)Correspondence Chess: Ivar Bern vs Joop Van Oosterom - ICCF Olympiad 15 Final 2006 - KID (E94)kingscrusherintermediateCorrespondence Chess : Kings Indian Defence: Joop Van Oosterom vs Gert Jan Timmerman - 1999Correspondence Chess : Kings Indian Defence: Joop Van Oosterom vs Gert Jan Timmerman - 1999kingscrusherintermediate