At least 3 different mating moves are made on the same square.
See also: Play on the same square.
Tribowski, Marcel
harmonie, 1992
1st Prize
1.Ke3
Bxc4
2.Rf1
Se6
3.Rf3
Re2#
1.Qf4
Sf5
2.Kf3
Rh2
3.Be4
Be2#
1.Sd3
Rg3
2.Se5
Bd3+
3.Kf4
Se2#
Jonsson, Bernt Christer
The Problemist, 1993
1.Bb1
bxc4
2.Bf5
cxd5#
1.Re4
fxe4
2.Qf5
exd5#
1.Rxf3
e4
2.Rf5
exd5#
1.Sd6
c4
2.Sf5
cxd5#
1.Se7
d4
2.Sf5
d5#
1.Rh5
Bc6
2.Rf5
Bxd5#
1.f5
Sc5+
2.Kf6
Sxd5#