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

EGTB: win in 4 half-moves

# move score
1 Kd5 win in 3 half-moves
2 Kb7 win in 5 half-moves
3 Kc7 win in 5 half-moves
4 Kcb5 win in 5 half-moves
5 Kd7 win in 5 half-moves
6 Rb5 win in 7 half-moves
7 Rb7 win in 7 half-moves
8 Kb3 draw
9 Kbb5 draw
10 Kcc5 draw
11 Kd6 draw
12 Rb8 draw
13 Ka3 loss in 2 half-moves
14 Ka4 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Kbc5 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Ra6 loss in 2 half-moves