Compass theme
The black king and two black pieces alternatively occupy two squares X and Y in a 4-solution helpmate in two. The distribution of the occupation of the two squares X and Y may take several possible cardinal directions and it is helpful to use a compass to identify in which geographic zone the occupations are made by the black King and the black pieces.
For more information, see the article by Abdelaziz Onkoud: Le thème de la Boussole.
Gurov, Valery
Probleemblad, 2003
1st Prize
h#2 4.1... (5+12)
1.Ke4
Bxb6
2.Rf4
Re3#
1.Ke6
Ra7
2.Re5
Rxd6#
1.Kf4
Bxd1
2.Be4
Be3#
1.Ke5
Rxd2
2.Qe6
Bxd6#
Abdurahmanović, Fadil
Aachener Nachrichten, 1977
3rd Prize
h#2 4.1... (4+8)
1.Ke5
f8=Q
2.Rd4
Qf4#
1.Kd6
f8=S
2.Rc5
Qe6#
1.Ke7
f8=R
2.Rd6
Qf7#
1.Kf6
f8=B
2.Re5
g8=S#
Compass theme (North, 2-2, 4)
Type: Simple North, 2 thematic squares, 2 thematic self-blocks, 4 phases.
Type: Simple North, 2 thematic squares, 2 thematic self-blocks, 4 phases.
Type: Double North, 4 thematic squares (bK flights), 4 thematic self-blocks, 4 phases.