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

EGTB: win in 6 half-moves

# move score
1 Kb5 win in 5 half-moves
2 Ka5 win in 9 half-moves
3 Kd6 win in 9 half-moves
4 Ra6 win in 9 half-moves
5 Kd7 win in 13 half-moves
6 Kd8 win in 15 half-moves
7 Ke6 win in 17 half-moves
8 Ke8 win in 17 half-moves
9 Ra8 win in 19 half-moves
10 Ka3 draw
11 Kb4 draw
12 Kf6 draw
13 Kf7 draw
14 Kf8 draw
15 Ra5 draw
16 Rb7 draw
17 Kb3 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd7 loss in 2 half-moves