▁in ▁ 1 9 6 5 . ▁ ▁Despite ▁his ▁strong ▁performance ▁at ▁the ▁ 1 9 6 8 ▁Ch ess ▁Olymp i ad ▁in ▁L ug ano , ▁where ▁he ▁scored ▁ 9 / 1 2 ▁and ▁gained ▁a ▁bronze ▁medal , ▁Pr ins ▁was ▁not ▁selected ▁for ▁the ▁Dutch ▁team ▁at ▁the ▁ 1 9 7 0 ▁Ch ess ▁Olymp i ad . ▁Sub sequently , ▁he ▁broke ▁from ▁the ▁Dutch ▁Ch ess ▁Federation ▁and ▁played ▁only ▁occasionally ▁after ▁this . ▁His ▁final ▁tournament ▁was ▁a ▁large ▁open ▁in ▁C att ol ica , ▁Italy ▁in ▁ 1 9 9 3 , ▁where ▁he ▁finished ▁in ▁the ▁middle ▁of ▁the ▁field . ▁Pr ins ▁co author ed ▁several ▁ch ess ▁books ▁with ▁Max ▁Eu we , ▁including ▁the ▁ 1 9 4 9 ▁bi ography ▁of ▁Cap ab lan ca ▁Het ▁Sch a ak phen ome en ▁Cap ab lan ca ▁and ▁several ▁tournament ▁books . ▁ ▁References ▁ ▁External ▁links ▁ ▁Tim ▁K rab be ' s ▁t ribute ▁to ▁Pr ins , ▁Open ▁Ch ess ▁Di ary ▁# 3 7 ▁ ▁Category : 1 9 1 3 ▁birth s ▁Category : 1 9 9 9 ▁death s ▁Category : D utch ▁Jews ▁Category : D utch ▁ch ess ▁players ▁Category : J ew ish ▁ch ess ▁players ▁Category : J ew ish ▁Dutch ▁sports people ▁Category : Ch ess ▁grand master s ▁Category : Ch ess ▁ar bit ers ▁Category : Pe ople ▁from ▁Amsterdam ▁Category : 2 0