<prompt> Pedzisa mutsara unotevera: Koltanowski pashure pacho akafamba muUnited States asinganeti kwamakore, achironga makwikwi echess nokuratidzira panguva imwe chete kwose kwose. Pashure pokukundikana kwake mu1946 U.S. Open muPittsburgh, haana kuzotamba mutambo wechess zvakare, kunze kwemitambo miviri senhengo yechikwata cheU.S. mu  <response>: 10th Chess Olympiad Helsinki 1952, kuwana dhizaini neSoviet Grandmaster Alexander Kotov, mumwe wevatambi vakasimba kwazvo munyika, uye dhizaini neHungarian International Master Tibor Florian, mumutambo uyo Koltanowski airatidzika kunge ari kuhwina. 