Panzer Campaigns Budapest '45

It was dawn on New Year's Day in the last year of the war. The enemies of the Reich were closing in on both the East and West Fronts. The Germans had squandered much of their last panzer reserves against the Americans at the Battle of the Bulge. In the east, the lines were holding pending the next major offensives by the Soviet juggernaut, and while Stalin continually hounded his generals to finish off the pocket of German and Hungarian troops holding Budapest, the Germans still had another offensive in them. They launched Operation Konrad - an offensive that almost succeeded in relieving the surrounded troops. Can you succeed where the Germans failed?