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

EGTB: win in 6 half-moves

# move score
1 Kh6 win in 5 half-moves
2 Kb8 draw
3 Kd8 draw
4 Kg4 draw
5 Kg5 draw
6 Kg6 draw
7 Ra3 draw
8 Ra4 draw
9 Ra5 draw
10 Ra6 draw
11 Rb8 draw
12 Kb7 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Kh4 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra7 loss in 2 half-moves