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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kc5 win in 3 half-moves
4 Ra5 win in 3 half-moves
5 Ra6 win in 3 half-moves
6 Ka6 win in 7 half-moves
7 Ka8 win in 7 half-moves
8 Kb6 win in 7 half-moves
9 Kb7 win in 7 half-moves
10 Kb8 win in 7 half-moves
11 Kc4 win in 7 half-moves
12 Ka3 draw
13 Ra3 draw
14 Kb3 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Ra2 loss in 2 half-moves