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

EGTB: win in 4 half-moves

# move score
1 Kf7 win in 3 half-moves
2 Kb7 win in 5 half-moves
3 Kf8 win in 5 half-moves
4 Rb8 win in 5 half-moves
5 Kb6 win in 7 half-moves
6 Kb8 win in 7 half-moves
7 Kc6 win in 13 half-moves
8 Kd6 win in 13 half-moves
9 Kc8 draw
10 Kcd7 draw
11 Kcd8 draw
12 Ked8 draw
13 Ra3 draw
14 Ra7 draw
15 Rc8 draw
16 Rd8 draw
17 Ke7 loss in 2 half-moves
18 Ked7 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Ra4 loss in 2 half-moves
22 Ra5 loss in 2 half-moves
23 Ra6 loss in 2 half-moves