Camillo Gamnitzer, Schach 2021
Position: 4r2r/1N2P1N1/1ppP2p1/1P1k1b1q/5Ppn/1p6/4Q2p/BB5K w - - 0 1
 
mate in 4

Black: Re8, Rh8, b6, c6, g6, Kd5, Bf5, Qh5, g4, Nh4, b3, h2
White: Nb7, e7, Ng7, d6, b5, f4, Qe2, Ba1, Bb1, Kh1

Non-thematic:
1. Se6? Txe7! Tc8? 2. Sec5! bxc5 3. De5+ Kc4 4. Dxc5#
1. L,Sxf5? Dxf5! 1. Lc2? bxc2! 1. Sxe8? Txe8!

Set:
1. - b2 2. Lxb2? Ta8! 2. La2+! Kd4 3. Lxb2#
1. - Lxb1 2. De6#
1. - cxb5 2. Dxb5#
However, thematic try: 
1. Ld3? (2. Lc4#/De5#) cxb5!
2. Dxb5?? e. g. 2. Lxb5 (3. Dc4#/De5#) Le4+!

1. d7!! thr. (2. Dd2+ Kc4 3. Sd6+! Kc5 4. Dd4#) Sf3
2. Ld3! thr. (3. Lc4#) Se5/Sd2 3. D(x)e5#
2. -
cxb5 (3. - Kc6!) 
3. Lxb5? (4. Dc4#) Tc8!
However: 
3. Le4+(!) un-doubling sacrifice on the point to be guarded / ent-doppelnde Hingabe auf dem Punkt der Deckungspflicht
3. - Lxe4 without check!
4. Dxb5#!
2. - b2
3. Lc4+ Kd4 4. Lxb2#

Kraft-Masse-Transformation as Anti-Holzhausen- maneuver. Presumably first realization / vermutlich Erstdarstellung.