Umnov mate
The white mating piece arrives (on the mating move) on a square that has just been vacated by a black piece.
See also: Umnov move; Consecutive Umnov; Closed chain of Umnov; Delayed Umnov; FML.
Avner, Uri
J. & M. Figueiredo MT, 2011
1st Prize
h#2 b) wKc1→f8
(11+10)
a) 1.Sc3
Sa4+
2.Sd5+
Sc3#
b) 1.Sd6
Sb7+
2.Sf5+
Sd6#
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#
Umnov mates in b).