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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Kc8 win in 3 half-moves
4 Kcc6 win in 3 half-moves
5 Ra5 win in 3 half-moves
6 Ra8 win in 3 half-moves
7 Kb7 win in 5 half-moves
8 Kc5 draw
9 Kcd7 draw
10 Kd5 draw
11 Kd8 draw
12 Kdc6 draw
13 Kdd7 draw
14 Ke6 draw
15 Ke7 draw
16 Ra3 draw
17 Ra4 draw
18 Ra6 draw
19 Ke5 loss in 2 half-moves
20 Ra1 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Rb7 loss in 2 half-moves