Schwimwehr, the Fourth!

On the Rotenburg left, the Vulgarian cavalry adjusts itself: after all, those saddles aren't always comfortable. (Below) The regiments of Vulgarian horse wheel to the left, more fully to menace the advancing enemy foot.

(Below) Saxe-Peste's infantry line grinds forwards. Or obliquewards. Or whatever word describes the process of going wards when one is also heading to the side. On the left, his front line is now within musketry range of the enemy cavalry who have no space with which to move around the enemy flank. No doubt the general has the intention of forcing the cavalry to commit themselves to a frontal assault upon his infantry's bayonets. 

On the other side, the Rotenburg infantry move sufficiently to avoid the marsh. Some of the second line begins to wheel to the right, though, because of the potential threat from the Vulgarian irregulars. Of course, this would be more of a threat if the irregular infantry could fire whilst they were in the marsh. Alas, they aren't allowed: though in this case 'not allowed' refers to an extra-special interpretation of the rules by the Rotenburg commander - an interpretation which could be described as 'imaginative but somewhat contestable'. If, that is, by 'somewhat contestable' one meant that it was entirely wrong and that by 'imaginative' one meant something that was in fact a bald-faced lie, but one told with panache and confidence.

Also on the Rotenburg right, the cavalry is having an altogether less strenuous battle. Nevertheless (bottom) Saxe-Peste has ordered his horsed troops forward. This is partly in order to fulfil one of the key principles of Mittelheim warfare which is that one's own artillery should whenever possible be masked. This prevents them from firing and so reduces the chance of them embarrassing themselves.

However, a second reason for the cavalry to advance somewhat is that the Vulgarian irregular troops have also begun to creep forward (above, top right). The last thing that any gentleman needs is Vulgarian irregulars threatening to lap his flanks, so the cavalry have been ordered into a position where they can charge any of the enemy cheeky enough to cross the stream.

Saxe-Peste is happy with the progress of the battle thus far. His plan is unfolding as he had hoped, and he has also hidden the rule book. Now, anything is possible.