On 31 July the Soviet command changed the direction of its preparatory artillery fire, this time aiming it behind the hill and cutting off the German defenders from the main army group. The gradual decrease in the number of shells fired by the Soviet artillery (9,000 rounds on 30 July) was evidence of the weakening of the Soviet attacks. Soviet infantry started climbing up the Grenadier Hill. The Estonian units against them ran out of ammunition. The remnants of the I. Battalion, 3rd Estonian resisted the Soviet attacks on the southern flank.