▁of ▁Deep ▁Th ought ▁which ▁in ▁turn ▁evol ved ▁into ▁Deep ▁Blue . ▁ ▁Ch ip Test ▁was ▁based ▁on ▁a ▁special ▁V L SI - techn ology ▁move ▁generator ▁chip ▁developed ▁by ▁H su . ▁Ch ip Test ▁was ▁controlled ▁by ▁a ▁Sun - 3 / 1 6 0 ▁work station ▁and ▁capable ▁of ▁searching ▁approximately ▁ 5 0 , 0 0 0 ▁moves ▁per ▁second . ▁H su ▁and ▁An anth aram an ▁entered ▁Ch ip Test ▁in ▁the ▁ 1 9 8 6 ▁North ▁American ▁Computer ▁Ch ess ▁Championship , ▁and ▁it ▁was ▁only ▁partially ▁tested ▁when ▁the ▁tournament ▁began . ▁It ▁lost ▁its ▁first ▁two ▁r ounds , ▁but ▁finished ▁with ▁an ▁even ▁score . ▁In ▁August ▁ 1 9 8 7 ▁Ch ip Test ▁was ▁over h au led ▁and ▁renamed ▁Ch ip Test - M , ▁M ▁standing ▁for ▁micro code . ▁The ▁new ▁version ▁had ▁elimin ated ▁Ch ip Test ' s ▁bugs ▁and ▁was ▁ten ▁times ▁faster , ▁searching ▁ 5 0 0 , 0 0 0 ▁moves ▁per ▁second ▁and ▁running ▁on ▁a ▁Sun - 4 ▁work station . ▁Ch ip Test - M ▁won ▁the ▁North ▁American ▁Computer ▁Ch ess ▁Championship ▁in ▁ 1 9 8 7 ▁with ▁a ▁ 4 – 0 ▁swe ep . ▁Ch ip Test ▁was ▁invited ▁to ▁play ▁in ▁the ▁ 1 9 8 7 ▁American ▁Open , ▁but ▁the ▁team ▁did ▁not ▁enter ▁due ▁to ▁an ▁ob jection ▁by ▁the ▁Hi T ech ▁team , ▁also ▁from