My First Messigny

h#3

Messigny*

Grasshopper** c2

1.Bh1-d5 Sd3-f2 2.Bd5-c4 Gc2-c5 3.Bc4-f1 Kg1<->Kg3 #

* Instead of an ordinary move, any unit (Ks included) may be swapped with another of the same type and opposite colour, provided neither of the units involved was swapped on the previous move.

** Moves along Queen-lines over another unit of either color to the square immediately beyond that unit. A capture may be made on arrival, but the hurdle is not affected.