Reciprocal battery transformation
Two pieces of the same color create in a single line of play two batteries in which their front piece and rear piece roles are exchanged.
Meinking, Daniel E.
Wiehagen, Rolf
F. Abdurahmanovic-60 JT, StrateGems, 2000
2nd Prize
h#4.5 2.1... (4+9)
1...Re2
2.Kc4
Rxa2+
3.Kb3
Rf2
4.Bb1
Be2
5.Ka2
Bc4#
1...Be2
2.Ke4
Bxg4+
3.Kf4
Bd1
4.g5
Re2
5.Kg4
Re4#
Meinking, Dan
StrateGems, P. Petkov-60 JT, 2002
Spec. Prize
h#3.5 2.1... (4+8)
1...Rc4
2.Kd5
Ra4+
3.Ke4
Ra3
4.Kf3
Bd5#
1...Bc4
2.Kc5
Be2+
3.Kb4
Bd1
4.Ka4
Rc4#