At least twice in a row a move is played to the just vacated square.
See also: Closed chain of Umnov; Delayed Umnov; FML; Umnov move; Umnov mate.
Alias: Successive Umnov.
Semenenko, Valery
Chorno-bili stezhyny, V. Stankevich-85 JT, 2016
3rd Prize
1...Rxc1
2.Kg6
Rxd1
3.c1=R
Rxe1
4.d1=S
Rxf1
5.e1=R
Rg2#
Niemann, John
Feenschach, 1963 (corr.)
2nd Prize
1.Sd5
Bb6
2.Sf4+
Sd5
3.Sg2+
Sef4#
Loustau, Jean-Marc
Ideal-Mate Review, 1986
Prize
1.Sc7
Kf1
2.Kd5
Kg2
3.Bd6
Kg3
4.c5
Kf4
5.Sc6+
Kxe3
6.e5
Kd3
7.Se6
e4#
Wiehagen, Rolf
Linss, Torsten
harmonie, 1990 (v)
1st Prize
1.Kg5
Bb4
2.Rg4
Kc5
3.Rfg3
d4
4.f3
d3
5.Kf4
Bd2#
Schöneberg, Achimt
Wiehagen, Rolf
Die Schwalbe, 1992
1st HM
1.Kb2
Sc1
2.Qa2
Sb3
3.Bc1
Sd2
4.Bb3
c4#
FEN: 8/5K2/r1p5/3p3n/2bB1p2/rqPP4/N1pb4/2k5
Tylor, Christopher Max Bazett
Wiehagen, Rolf
Die Schwalbe, 2004
1...Bd6
2.Se5+
d3
3.Sd2
Bb3
4.a2
Ba3#
Abdurahmanović, Fadil
Orbit, 2006
2nd Prize
1.Sd1+
Sf2
2.Sf6
Se4
3.Sf2
Sd6
4.S6e4
Sf5#