Exchange of promotions
In a phase, there are two promotions to different pieces. In another phase, the same Pawns promote on the same squares but interchange their types.
See also: Loewenton theme; Changed promotions; Cycle of promotions.
Alias: Reciprocal promotions.
Lowenton, Leon
Arbejder-Skak, TT-4, 1957
1st Prize
h#2* (5+5)
1...e8=S
2.Be7
c8=Q#
1.Be5
e8=Q+
2.Kd6
c8=S#