Study of the year 1990 
Mario Matous Bron Memorial 1st Prize

Draw

White: Kh1,Rb5, Ne2 
Black: Kh4, Nd3, Bd7; pawn - f3

1.Nd4! f2! 2.Rbl Nel The climax starts here. 3.Nf3+ and two lines:
3... Kg3 4.Rxe1 Bc6 5.Rgl+ Kh3 6.Rg3+ Kxg3 stalemate or
3...Kh3 4.Rxe1 Bc6 5.Re4!! f1Q+ 6.Ngl+ Kg3 stalemate 