When the Guards advanced, the Austrian IVth Corps was still engaged in taking up its new position. Unchecked by the fire of more than 100 guns in position west of Nedelist, the Guards crushed the two battalions on the left of the IVth Corps, and penetrated into the gap; the left wing rolling up the flank of an Austrian brigade, and pushing on in the direction of Sweti; while the right wing, changing front to the right, stormed the village of Chlum, which, though the key of the Austrian position, was occupied by only a single battalion. As the Guards advanced, the force under Von Alvensleben, which had constituted the advanced-guard in the morning, moved forward in echelon on their right. A brigade of the Austrian IVth Corps, which, by some mistake, had been left at Cistowes, and was now marching to the new position of its corps, was struck by Von Alvensleben, and driven to the westward of Chlum with heavy loss. Simultaneously with the Guards, the VIth Corps advanced upon the enemy, the 11th Division capturing Nedelist, and the 12th driving the cut-off Austrian brigade into Lochenitz. The Austrians made several determined attacks from Langenhof and the Lipa wood upon the Prussians in Chlum; but though they fought with great bravery and penetrated into the village, they were repulsed by the Guards, who then seized Rosberitz and the forest of Lipa. The 1st Austrian Reserve Cavalry Division, consisting of five regiments, charged the Prussians south of Chlum. The brigade on the left consisted of two regiments of cuirassiers, and was formed in double column: the one on the right was composed of two regiments (one of cuirassiers and one of lancers), formed in double column, with a regiment of cuirassiers following as a second line. The charge was repulsed by four companies of the infantry of the Guard. It is remarkable that in this case, the cavalry came within 200 yards of the infantry before the latter opened fire.