HOTF
A helpmate has at least two pairs of solutions, each pair showing a separate theme, i.e. any combination of motifs which occupies at least 3 of the 4 half moves. Each pair should in itself be a good helpmate, but the pairs should be clearly distinct, yet forming a coherent whole.
Alias: Helpmate of the future.
Pachl, Franz
The Problemist, HOTF Ty, 2003
1st Prize
h#2 2.1... (7+10)
b) bQd4
a)
1.fxe5
Rc5
2.exd4
Bc4#
1.Rxd5
Bf4
2.Rxd4
Re3#
b)
1.Ke3
Bg6
2.Qf4
Bd4#
1.Kc4
Rb8
2.Qc5
Rd4#