Section A1 – Win
1.Nf4!
( Thematic Try: 1.Nd4? f4 2.a3! f5 3.a4 Kc7 4.Ne6+ Kc8 5.Nxf4 d4 6.a5 Kc7 7.Ne6+ Kc8 8.Nxd4 f4 9.a6 Kc7 10.Ne6+ Kc8 11.Nxf4 Kc7! =, quiet * )
( 1.a3? f4!!
( 1…Kc7? 2.Nf4! d4 3.Ne6+ +- See ML after 3. Ce6+ )
2.Nxf4 d4 3.a4 f5 4.a5 =, quiet See TT after 6.a5 )
1…d4 2.a3!!
( Logical try: 2.a4? Same development as the main line up to 11. Cxf5 Rc8=*, the white pawn already being positioned on a6. )
2…Kc7 3.Ne6+!
( 3.Nd5+? Kc8 4.Nxf6 d3 5.Nd5 d2! =, quiet )
3…Kc8 4.Nxd4 f4 5.a4 f5 6.a5 Kc7 7.Ne6+ Kc8 8.Nxf4 Kc7 9.Nd5+
(Cg6)
9…Kc8 10.Ne7+ Kc7 11.Nxf5 Kc8 12.a6! +- *
Theme : Principle of Salvio* with << festina lente >>
*According to the principle stated by Salvio in 1604 :
When white King and pawn are locked in by the black King placed on c7 or c8 with a white Knight on any square, if it is Black to move : then black King goes to a square of the same color than the Knight’s square it is a draw. If it is White to move, it is a win for him.