Camillo Gamnitzer, The Problemist 2001
Position: 5r2/P3pP1p/R3Q3/1p1N2P1/3P3B/2pPpkP1/2rp3p/3b1Kbq w - - 0 1
 
selfmate in 5

Black: Rf8, e7, h7, b5, c3, e3, Kf3, Rc2, d2, h2, Bd1, Bg1, Qh1
White: a7, f7, Ra6, Qe6, Nd5, g5, d4, Bh4, d3, g3, Kf1

1. Sb6!
(2. a8D/L+ Txa8 3. f8D/L+ Txf8 retour; 4. Dg4+ Kxg4#)
1. - h5
2. Sd5!
retour (3. Dxe3+ Kg4 4. De6+ retour Kf3
5. De2+ Lxe2#)
2. - Txf7
3. Dxf7+! Kg4
4. Df5+!! Kxf5
(Kh5??)
5. Sxe3+ Lxe3#

Lockeres Spiel mit strategischem Witz und einer krachenden, auch als brutal empfindbaren, "Motiv-Inversion" (= 3. Dxf7+).   
Three switchbacks, two by White and one by Black, give unity to the underlying idea of this profound problem (J. M. Rice)

Difficult in all respects (CCF)