Le test de Nolot

Les blancs matent en 31

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Nouvelle partie"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2qN4/k2p4/2pP4/1pP3B1/pP6/P3K3/8/8 w - - 0 1"]
[PlyCount "61"]

{[ 1. Ke4 Kb8 2. Kf5 Ka8 3. Kg6 Ka7 4. Kf7 Kb8 5. Ke7 Ka7
6. Bh6 Kb8 7. Bf8 Qa6 8. Nf7 Qc8 9. Ne5 Ka7 10. Nxd7 Qb7 11. Bg7 Ka8 12. Bf6
Ka7 13. Ke8 Qc8+ 14. Bd8 Kb7 15. Nf6 Qh3 16. Be7 Qc8+ 17. Kf7 Qh8 18. d7 Kc7
19. d8=Q+ Qxd8 20. Bxd8+ Kxd8 21. Ne8 Kd7 22. Nd6 Kd8 23. Ke6 Kc7 24. Ke7 Kb8
25. Kd7 Ka7 26. Kxc6 Ka8 27. Kd7 Ka7 28. c6 Ka8 29. c7 Ka7 30. c8=Q Kb6 31.
Qb7# {#31/89} *