Seeking to expand their penetration into the Polish fortified line in front of Katowice, the German VIII Corps concentrated its artillery to pound the defenses in a bombardment more suited to 1918 than 1939. But Army Krakow had its difficult-to-redeploy heavy artillery in place behind this part of the front and responded in kind, shocking the Germans. Their surprise grew when the supposedly-beaten Poles rose from their trenches and foxholes to counter-attack the invaders.

With the help of Armored Train No. 51 Pierwszy Marszalek (“First Marshal”) and a curtain of artillery fire, the Polish attack made some progress, taking back most of the ground lost on the previous day and disrupting German plans for further advances. The success would ultimately mean little, as the Polish position had been unhinged from the south and the Poles would soon withdraw of their own volition.