Meisterwerke

Start from the following position:

and play forward: 1. Ng7 Kh6 2. d5 Nf4 3. d6 Qf3 4. b3 Rh5 5. b4 Bh4 6. b5 Qg3 7. hg3 h2 8. a3 h1=Q 9. a4 Qd1 10. a5 Qd5 11. a6 Qb7 12. ab7 Nd3 13. b8=N Ne1 14. Na6 Nd3 15. Nc5 Ne1 16. Na4 Nd3 17. Nc3 Ne1 18. Nd1

So white moved last. #1 with 1. ... Ne4#

Solution by Philippe Schnoebelen