Camillo Gamnitzer, The Problemist 2016 , 1. Preis
Position: rR3N2/7p/1p3Q1P/b7/2PP4/3Pkpp1/2BnpRbN/4K2n w - - 0 1
 
selfmate in 6

Black: Ra8, h7, b6, Ba5, Ke3, f3, g3, Nd2, e2, Bg2, Nh1
White: Rb8, Nf8, Qf6, h6, c4, d4, d3, Bc2, Rf2, Nh2, Ke1

Even if Camillo's inimitable style is familiar, you'll probably agree, that this problem is full of surprises
(Stephen Taylor im Vorspanntext)

Some failing attacks:
1. Txe2+? fxe2 2. Df2+ Sxf2!
1. De6+? Kxd4! 1. - Kf4? 2. Dg4+ Ke3 3. De4+ Sxe4# 
1. Dh4? (2. De4+) ~xf2+! 
1. Te8+? Txe8 2. ??

Thematic: 1. De5+? Se4+ 2. Dxa5...
That means: La5 must not move!
1. c5? avoiding horizontal interference (2. De5+ Se4#)
1. - bxc5! preparing vertical interference (3. Tb4...)

1. Lb1!!
(2. Dg5+ Kxd4 3. Se6+ Kc3 4. Dxd2+! Kb3 5. Sc5+! Ka3 6. Dc3+ Lxc3#) 
1. - Txb8 (5. - bxc5!)
2. c5! (3. De5+) Te8! → defence replacement, Dresden
3. Se6! Txe6 
4. Txf3+ Lxf3
5. Sf1+! exf1L/S
6. Df4+! Kxf4#...

Brilliant logical selfmate and a real masterpiece!
(Judge Jiri Jelinek)