Montgomery launches his attack in the North on the evening of 23rd October.During the night of 2/3rd November (!) Enigma decrypts reporting the enemy’s assessment of the fighting reach Eighth Army in a steady stream. A long emergency situation report from Rommel to Berlin confirms that his army ‘will no longer be in a position to prevent a further attempt by strong enemy tank formations to break through’.

http://www.bletchleypark.org.uk/

In "Alamein" by Stephen Bungay 2002, it is mentioned that Monty for a while thought of ending the attack as the German lines were holding on after so many days. As he was informed that the Germans were on the edge of collapse
( decrypts ) he kept on attacking and broke through.So it seems that breaking the German code had a very important meaning for the victory in Alamein, it seems (?)

What if he did not get the information and stopped the attack? A major propaganda loss, but could Monty keep his job, or Churchill? What do you think this might have done to the military situation in North Africa? Or would it have mattered in the end at all?

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