9 -
Problem, 1959
1st Prize
[14+14. Wer gewinnt?]
The position unlocks with
-1. c5-c6
-2. a5-a4 Nc6-b8
-3. Kb8-a8 Nb4-c6
-4. Ka8-b8 Nd3-b4
-5. Kb8-a8 Nf2-d3
-6. Ka8-b8 h2-h3
-7. Kb8-a8 Nh3-f2
-8. Ka8-b8 Nf4xPh3
-9. Kb8-a8 Nd5-f4
-10.Ka8-b8 c4-c5
-11.Kb8-a8 c3-c4
-12.Ka8-b8 c2-c3
-13.Kb8-a8 Nb6-d5
-14.h4-h3 Kb5-a6
-15.h5-h4 Kc4-b5
-16.Ka8-b8 Nd5-b6
and everything unlocks.
So White played last and Black wins with Rb7-? mate.
Solution by Philippe Schnoebelen