OK. It does work. The trick is to stay in contact whilst retreating. Incidentally and with great respect, Conscripts, perceiving victory, often gave chase without orders, whereas more disciplined units would stand there ground. So a whole Corps may not be deceived but a good proportion can be. The Grand A! obviously agrees with me, because it fell into the trap. Here's how.
I opened the Tutorial in "Commander in Chief" mode. For the purposes of the exercise I ignored all other Corps except "Von Senitzet"
I ordered Pereira to march to the village of Rinetz.
Then De Giedroyc was ordered "On Diversion" 1800m west of Stabloss, his line north to south.
As Von Senitzet made his first contact with De Giedroyc, I ordered his Corps to retire to a line of defense 1200m east of Haldacht.
Von Senitzet attempted to stay in contact with the retreating Corps and as his left flank presented to Pereira, I ordered Periera's Corps to Deploy (refusing the left) on the vulnerable left rear of Von Senitzet.
It proved to be a classic "Hammer and Anvil". De Giedroyc had by now deployed in a solid defensive line and Von Senitzet had nowhere left to run.
I don't know if this was a fluke, so I will try to repeat it several times.