Meisterwerke

Start from the following position:

and play:

1. ed3 Kd8 2. Be2 Kc8 3. Bh5 Kd8 4. Re1 Kc8 5. Re4 Kd8 6. Rd4 Kc8 7. Rd7 h6 8. Rb7 Kd8 9. Kh7 Kc8 10. Qg8 Kd8 11. Nf8 Kc8 12. Nd6 Kd8 13. Nc8 Ke8 14. Rb8 Kd8 15. Ra8 Ke8 16. Bb8 Kd8 17. f3 Ke8 18. Nd6 Kd8 19. Ne8 Kc8 20. Ng6 Kd8 21. Nh4 Kc8 22. Nf5 Kd8 23. Bg4 Kc8 24. Bh3 Kd8 25. Qf8 Kc8 26. Kg8 Kd8 27. Rh7 Kc8 28. Nd4 Kd8 29. Ne6 Kc8 30. Nd8 Kxd8 31. Bg3#

In this part of the solution, black played 29 king-moves. To release the white pieces in the northeast corner, black needs another thee king-moves (OOO, Kc8-b8, white pieces enter the northeast cage, Kb8-c8) The whole position now unlocks.

So black played at least 29+3=32 king moves.

Solution by Philippe Schnoebelen