1. Kb5 !
Thematic try : 1. Kd5 ? h3 ! = (1.... Kb8 ? 2. Ke4 ! +-)
1....h3 !
2. c6+ Kb8 !
3. Ka6 !
3. c7+ ? Kb7 ! 4. a5 h2 5. a6+ Kc8 ! 6. a7 h1=Q ! -+ (6....h1=B ? =)
3. a5 ? h2 4. a6 h1=Q ! (4....h1=R ? =) 5. a7+ Ka8 ! -+
3....h2
4. c7+ Kc8 ! (4....Ka8 ? 5. b7 #)
5. b7+ !
5. Ka7 ? h1=Q ! -+ (5....h1=B ? 6. a5 ! Bb7 7. a6 +-)
5....Kxc7
6. Ka7 h1=Q
7. b8=Q+ Kd7 !
8. Qb7+ ! Qxb7+
9. Kxb7 Kd6 !
10. a5 ! +-
10. Kb6 (?) Kd7 ! (Threat : 11....Kc8 ! =) 11. Kb7 Kd6 is a loss of time.