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

EGTB: win in 4 half-moves

# move score
1 Kd8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Ka7 win in 7 half-moves
4 Kb7 win in 7 half-moves
5 Kb8 win in 7 half-moves
6 Rc8 win in 11 half-moves
7 Kd6 draw
8 Kd7 draw
9 Kf7 draw
10 Kf8 draw
11 Rb8 draw
12 Ke6 loss in 2 half-moves
13 Kf6 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh8 loss in 2 half-moves