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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Kcd7 win in 3 half-moves
4 Re7 win in 3 half-moves
5 Kb8 win in 9 half-moves
6 Kd8 win in 9 half-moves
7 Rf8 win in 11 half-moves
8 Ke5 draw
9 Ke7 draw
10 Rg8 draw
11 Rh8 draw
12 Kd5 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ked7 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Rd8 loss in 2 half-moves