In the recent Copenhagen Chess Challenge 2015 IM Jens Ove Fries Nielsen played his rare openings: With the white pieces he played 1.e3..
a) 1..Nf6 3.c4 c5 3.f4 which Hugh Myers used to call 'Mujannah formation' in the Myers Openings Bulletin Vol. 1 N° 2, because the Arab pioneers of the game like to combine c4 with an early f4
b) 1..d5 2.Nf3 Nf6 3.b4.. is a variation of the Sokolsky's opening (1.b4) having sidestepped 1..e5 2.Bb2 Bxb4 3.Bxe5 Nf6 which is dynamic and double edged
c) 1..e5 2.c4 Nf6 3.a3 d5 4.b4.. with a St.George formation
After a Kings Indian attack in between, the last round was again a real UCO : 1. d4 Nf6 2.Nc3 c5 3.e3 g6 4.g4!?..
With the black pieces he was also quite unusual for instance:
1.e4 d6 2.d4 a6!? :
a) 3.Nc3 Nc6 4.d5 Nb8 5.a4 e5
b) 3.f4 d5 4.e5 Bf5