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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kb2 win in 5 half-moves
4 Ra2 win in 5 half-moves
5 Ra3 win in 5 half-moves
6 Kd1 win in 9 half-moves
7 Ra1 win in 17 half-moves
8 Kc4 draw
9 Ra7 draw
10 Ra8 draw
11 Ka3 loss in 2 half-moves
12 Ka5 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves