Win
Section B.1.
Rainer Staudte & Michael Schlosser (Germany)
wKa5,Nd8,Rf5/bKa7,Qa8,Pf4
1.Rf7+! Kb8+ 2.Kb6 Qa3 3.Nc6+! Ka8
3…Kc8 4.Rc7#
4.Kc7! Qc5
4…f3 5.Rd7! Qf8 6.Kb6! Switchback 6…f2 7.Ra7#
5.Rf6! preservatio n of a useful Black unit, i. e. taking the Pawn is worse for White (enables stalemate and opens lines)
5.Rxf4? Qb6+ (5…Qa3 6.Rd4 Qg3+=) 6.Kxb6= stalemate
5…Qa3
5…f3 6.Rf4!+-
6.Rf5 switchback, wins, e. g. 6…f3 7.Rb5+-