In a reversal of roles, I'll provide the brief, one-eyed report here ahead of Mark's more detailed report on his blog (hopefully I have the names of the formations about right!).
Reinforcements were coming to Gudin's aide too, in the form of Vialannes' light cavalry^ and Friant's division, along with the Iron Marshal himself. Note the Prussian batteries in the foreground which were not making much impact due to Stephen's average or worse rolls and my generally above average counter-rolls. I do like the way Napoleon's Battles deals with 'the imponderable with each player throwing a D10.
(^It is interesting that, while Friant, Gudin and Morand are 'household' names amongst Napoleonic buffs, Vialannes is a 'nobody'. I read in one of the accounts that Davout was most displeased with his performance. Little wonder he amounted to nothing, when such a battle and the fact that the few French light cavalry existed at the end should have covered him in (at least) reflected glory!)
The Prussian fusiliers retreated (invoking the extreme sounding 'voluntary rout' under Napoleon's Battles), allowing the "Blücher" hussars to charge in. Gautier's boys formed square (which is more "prepared to receive cavalry" at this scale, as Mark explained), seeing them off fairly easily.
In due course, the three Prussian divisions were almost in position to attack, while the reserve divisions approached in the distance.
First cavalry mêlée! An indecisive affair so the attacking Prussian hussars withdrew to reform. Sounds a lot like the historical action.
More Prussian hussars charged in. Not actually the death's heads lads, but they went for a death or glory charge. Kister's brigade (Friant) got themselves 'organised to receive' and these horsemen too recoiled.
View from the west (Prussian) side on the eve of the decisive turn of the game.
Vialannes' horsemen charged some of Wartensleben’s infantry who failed to 'prepare to receive' and could not be saved by the supporting dragoons.
The French horsemen then charged the next unit of infantry, who did get organised, sending Vialannes' men back to reform.
The signal was made. Prussian attacks all along the line. Our troops though, held firm everywhere, inflicting some bloody noses.
So we counter-attacked, routing Wartensleben’s boys who had formed 'square' in response to the charge of Vialannes' brigade.
A regiment of Gautier's brigade attacked to finish off their previously unsuccessful assailants (rear of photo), while a regiment of Brouard's brigade (Morand's division) attacked some isolated Prussians who had advanced to fire on some of that division's troops in square (foreground).
The tide well and truly turned, and old father time tarryng-not, we called the game at that point.