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

EGTB: win in 4 half-moves

# move score
1 Kd7 win in 3 half-moves
2 Ra7 win in 3 half-moves
3 Kb7 win in 5 half-moves
4 Kb8 win in 5 half-moves
5 Kc7 win in 7 half-moves
6 Kd8 draw
7 Ke5 draw
8 Ke6 draw
9 Ke7 draw
10 Kf5 draw
11 Kf7 draw
12 Kg6 draw
13 Kg7 draw
14 Ra3 draw
15 Ra4 draw
16 Ra5 draw
17 Ra6 draw
18 Kg5 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Rb8 loss in 2 half-moves