<prompt> Pedzisa mutsara unotevera: Horowitz akanga ari mutambi anotungamirira muU.S. mukati mema1930 nema1940. Akanga ari U.S. Open Champion muna 1936, 1938, uye 1943. Muna 1941, akarasikirwa nomutambo 0313 naSamuel Reshevsky nokuda kweU.S. Chess Championship. Akatamba muU.S. Team muOlympiads ina dzeChess, muna 1931, 1935, 1937, uye  <response>: 1950; matatu okutanga ayo akakundwa neU.S. Mune yakakurumbira USA vs. USSR redhiyo chess match 1945, Horowitz akarova imwe yevakakunda vaviri chete veU.S. nekukunda GM Salo Flohr. Akagovana mini-match yake yemitambo miviri achipesana naFlohr, uye muchinyorwa cha1946 chechiitiko chimwe chete, akagovana mini-match yake achipesana naIsaac Boleslavsky. 