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

EGTB: win in 4 half-moves

# move score
1 Kf2 win in 3 half-moves
2 Kh7 win in 5 half-moves
3 Rh7 win in 5 half-moves
4 Kd1 draw
5 Kd3 draw
6 Ke1 draw
7 Ke3 draw
8 Kf1 draw
9 Kf3 draw
10 Kg5 draw
11 Kg6 draw
12 Kg7 draw
13 Kh5 draw
14 Rd8 draw
15 Re8 draw
16 Rf8 draw
17 Rg8 draw
18 Kd2 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rc8 loss in 2 half-moves