N.D. Grigoriev
"Shakhmatny Listok" 1931
Win

White: Kh1, Bh2; pawn - b5
Black: Kh3, Bh4

1 b6 Bf2 2 b7 Ba7 3 Bg1 Bb8 4 Bf2 Kg4 5 Kg2 Kf5 6 Bg3 Ba7 7
Kf3 and wins.