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 Kd8 win in 5 half-moves
3 Kb8 draw
4 Kg7 draw
5 Kg8 draw
6 Kh7 draw
7 Ra6 draw
8 Rb8 draw
9 Kb7 loss in 2 half-moves
10 Kc7 loss in 2 half-moves
11 Ra1 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra7 loss in 2 half-moves