hdp 6.0 solution for Problem 2

The above is the final position to the solution. Note that the final position (as well as the initial position!) is in the shape of an exclamation mark. Thanks for the creative and interesting problem Zoltan!

Let RH indicate a rookhopper. By convention, Black goes first in such problems. Here is the solution:

1... Kxb3 2. RHb4 Kxb4 3.b8=RH Kc5 4. b7 Kd6 5. RHb6 Kc7 6. RHb4 Kb8 7. b6