1. Sa~? (2. Sf6+ Txa8 3. Tf2+ Lxf2#) La4!
1. Lc6?/Ld5? (2. Sg3+! Kg4 3. Ld7+/Le6+ Kf3 4. Tf2+)
1. - Dg7(!) 2. Sf6, wrong mate; Db7?? bzw. 1. - Df6!

1. Tc5! (2. Tf2+ Kg4 3. h3+! Kxh3 4. Th2+ Kg4 5. Tg5+! Kf3 6. Th3+ Lg3#) De5? 2. Sf6+; 1. - Df6? 2. Tf5+! Dxf5 3. Sf6+
1. - bxc5
2. Lb7? (3. Sg3+ 4. Lc8+ etc.) Dh8(!) 3. Sf6, wrong mate; Dxa8?? 
2. Sb8?/Sxb4?/Sxc5? La4!
2. Sc7!! La4 Txa8? 3. Sd2+! Lxd2#
3. Sxb5! (4. Sd4+ Dxd4/cxd4 5. Sf6+ D~/Lc6 6. Tf2+)
3. - Txc2 (4. - Dxd4! Flight, battery-annihilation...)
Electrifying finale: 
4. Sg5+! Kxe3
5. Sf3+ Kd3
6. Sxe1+! Txe1?? Dxe1# Direct(!) mate

Thematic try:
1. Sc7? La4 2. Sxb5 thr. primarily (3. Sd4+) Db1?,Tc3?,c3?
3. Lc6/Ld5! ~ 4. Sg3+ etc. However: 2. - Da2!! selective flight 3. Lc6?/Ld5? Txc2! Flight, battery-annihilation...
Therefore 1. Tc5! bxc5.

A high-level piece (Dolf Wissmann)