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#3

Black Minimummer*

Mirror Circe** 

1.Rc5-c2 ! threat:
   2.Rc2-g2 zugzwang.
       2...h3-h2
          3.Rg2-g1 #
1...h3-h2
     2.Rc2*h2 +
         2...Bb8*h2[+wRh8]
              3.Rh8*h2 #

* Black must play his geometrically shortest move or may choose from among shortest moves of equal length, distances being measured from the center of each square. Diagonal and oblique distances are measured from the orthogonal coordinates by using Pythagoras’s s theorem (take the square root of the sum of the squares of the orthogonal distances). All other orthodox chess rules apply.
**  Like Circe, but the rebirth square of a piece is the square occupied at the beginning of an orthodox game by a piece of the same kind and of the other side. Related to the square they occupied before the rebirth: Rooks, Bishops and Knights are reborn on the square of the same color; Pawns (including fairy Pawns) are reborn on the same file; other fairy pieces are reborn on the same file and on the promotion rank of the other side.