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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Kc6 win in 3 half-moves
4 Kd6 win in 3 half-moves
5 Kc4 win in 7 half-moves
6 Kd7 win in 7 half-moves
7 Ra7 win in 7 half-moves
8 Kc8 win in 9 half-moves
9 Kb6 draw
10 Kd8 draw
11 Ra2 draw
12 Ka3 loss in 2 half-moves
13 Ka5 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kc3 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Ra8 loss in 2 half-moves