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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kc8 win in 5 half-moves
3 Kd7 win in 5 half-moves
4 Ke7 win in 5 half-moves
5 Ra7 win in 5 half-moves
6 Ra8 win in 5 half-moves
7 Kb4 win in 7 half-moves
8 Ka5 draw
9 Kb5 draw
10 Ke8 draw
11 Ra5 draw
12 Re6 draw
13 Rf6 draw
14 Rg6 draw
15 Rh6 draw
16 Ka3 loss in 2 half-moves
17 Kb3 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rd6 loss in 2 half-moves