Two line-pieces stand on the same line. One moves around the other (complete peri-manoeuvre). Then both pieces move (or have an effect) on this line in the same direction. In the complete form of the theme, the combination is made possible by an anticritical move. (Definition from FIDE Album)
See also: Pseudo Rehm theme.
Rehm, Hans Peter
Wiehagen, Rolf
Die Schwalbe, 1992
4th HM
a) 1...Rc4
2.Qxd2
Rc8
3.Qc1
Rb8
4.Qxb3+
Rxb3#
b) 1...Ba5
2.Qh1
Bd8
3.Qb1
Be7
4.Qxa3+
Bxa3#
Abdurahmanović, Fadil
Ellinghoven, Bernd
Rehm, Hans Peter
feenschach, 1997
3rd Prize
1.Kg4
Bd5
2.Bg6
Kg2
3.Be8
Kh2
4.Bc6
Bg2
5.Bf3
Bh3#
Ylijoki, Marko
Schach-Aktiv, 2003
5th Prize
1.Bc5
Bc7
2.Qh4+
Bh2
3.Sh3
Bg1
4.Kg3
Be3
5.Rg4
Bg1
6.Bf2
Bh2#
Abdurahmanović, Fadil
Ellinghoven, Bernd
feenschach, 2009
1st Prize
1...Bc7
2.Ba7
b8=Q
3.Bxd4
Qb6
4.Be5
Qd6
5.Bxh2
Qxh2#
Linss, Torsten
Rehm, Hans Peter
diagrammes, 2000
1st-2nd Prize
1.Qg1+
Kd2
2.Be3+
Kc3
3.Qc1+
Kxb3
4.Qc5
Ka4
5.Qa7
b4
6.Bb6
b5#
Rehm, Hans Peter
Linss, Torsten
The Problemist, 2000
4th Comm.
1.Qh1+
Kc2
2.Bd5
Kd3
3.Qc1
Kd4
4.Qc6
Ke5
5.Qa8
Kxd6
6.Bb7
Kxd7#
Paliulionis, Viktoras
feenschach, 2016 (v)
1.Rf6
Bd3
2.Be4
Ba6
3.Kf7+
Bc8
4.Sf8
Bf5
5.Qe8
Bh7
6.Bg6
Bg8#