Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kh6 win in 3 half-moves
2 Kd7 win in 9 half-moves
3 Rh6 win in 9 half-moves
4 Kc7 win in 17 half-moves
5 Kd8 win in 17 half-moves
6 Rh7 win in 17 half-moves
7 Kb7 draw
8 Kb8 draw
9 Kh4 draw
10 Rf8 draw
11 Kg4 loss in 2 half-moves
12 Kg5 loss in 2 half-moves
13 Kg6 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rg8 loss in 2 half-moves