Boros theme
White indirectly pins a black piece on the mating move.
Abdurahmanović, Fadil
The Problemist, 1990
1st Prize
h#2 2.1... (5+9)
1.Kf5
Qa5
2.Sg4
Bd3#
1.Kd6
Rd1
2.Bg2
Bb4#
Gavrilovski, Zoran
Liga Problemista, 1996
4-5 Place
h#2 b) bBg4
(6+8)
a) 1.Sxf2
Rd4
2.Kf5
Bg4#
b) 1.Bxf3
Sc5+
2.Kf6
Sg4#
Abdurahmanović, Fadil
Phénix, 1989
4th Prize
h#2 2.1... (6+10)
1.Rd6
Bd1+
2.Kb4
Sd5#
1.Bc6
Se2
2.Kc4
Be6#