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

EGTB: win in 4 half-moves

# move score
1 K6d7 win in 3 half-moves
2 Kd6 win in 3 half-moves
3 Kf5 win in 3 half-moves
4 Kf6 win in 3 half-moves
5 Rd7 win in 3 half-moves
6 Rf7 win in 3 half-moves
7 K8d7 win in 5 half-moves
8 Kd8 win in 5 half-moves
9 Ke5 win in 5 half-moves
10 Kf8 win in 5 half-moves
11 Rg7 win in 5 half-moves
12 K8f7 win in 7 half-moves
13 K6f7 draw
14 Kd5 draw
15 Rc7 draw
16 Rh7 draw
17 Ra7 loss in 2 half-moves
18 Rb7 loss in 2 half-moves