(1) the allies would have never in a million years captured him alive no matter how many chances they got to "play the timeline" over and over again.
(2) in the extremely unlikely event that they did capture him alive, much like Goering, he would have killed himself before sentencing... hung himself with his pants or a belt or something.
(3) if #2 didn't happen, it would have been the Russians who captured him anyway, not the British, Americans, Canadians etc. In that case the chances that he would have made it to the Nuremberg trial are slim. The Reds would have marched their trophy captive all the way back to Moscow, may or may not then provide him with a circus trial lasting all of ten minutes, and would have made a real show of his public hanging.
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