Less Than Zero. Or Something.

h#3

Circe
Republican Chess*

 1.h6-h5 Se5-g4 2.h5*g4[+wSb1] Bf6-b2 3.g4-g3 Sb1-c3[+bKa1] #

* There is not the King which will be mated. If the side which has played can put the opposite King on a square where it would be legally mated, then the opposite side is mated.