I definitely agree that it will be an easier one... (he typed with a snide smile and gleeful cackling laughter!)
So, here goes. The time is October 1942. The German Army is mercilessly attacking Stalingrad, and the beseiged defenders are desperate. The ice is already forming on tthe Volga, and the ice and periodical Luftwaffe attacks make a crossing a difficult and dangerous undertaking. The 6th Army throws itself headlong at the Russian positions, yet this final assault is defeated. In fact, the attacks of the time were blunted, often before the attackers began the attack itself. Finally, the question: What new tactic did the Russians use against the Germans that broke their attacks? Oh, and Operation Uranus is not the answer.