8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Step 1 / 2
Your d-pawn wants to promote; Black's king wants to blockade it. Put your rook on the f-file: the black king simply can't step across it toward the pawn. Cut it off and the rest is technique.
Step 1 / 2
Your d-pawn wants to promote; Black's king wants to blockade it. Put your rook on the f-file: the black king simply can't step across it toward the pawn. Cut it off and the rest is technique.