By 12 September, at the time of their retreat into the city, the Soviet 62nd Army had been reduced to 90 tanks, 700 mortars and just 20,000 personnel. The remaining tanks were used as immobile strong-points within the city. The initial German attack on 14 September attempted to take the city in a rush. The 51st Army Corps' 295th Infantry Division went after the Mamayev Kurgan hill, the 71st attacked the central rail station and toward the central landing stage on the Volga, while 48th Panzer Corps attacked south of the Tsaritsa River. Rodimtsev's 13th Guards Rifle Division had been hurried up to cross the river and join the defenders inside the city. Assigned to counterattack at the Mamayev Kurgan and at Railway Station No. 1, it suffered particularly heavy losses.