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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kb5 win in 5 half-moves
3 Kd4 win in 5 half-moves
4 Ka5 draw
5 Ka7 draw
6 Kb7 draw
7 Kd2 draw
8 Kd3 draw
9 Ke2 draw
10 Ke4 draw
11 Kf2 draw
12 Kf3 draw
13 Kf4 draw
14 Ra1 draw
15 Ra2 draw
16 Ra3 draw
17 Ra4 draw
18 Ra5 draw
19 Kc6 loss in 2 half-moves
20 Kc7 loss in 2 half-moves
21 Ra7 loss in 2 half-moves
22 Ra8 loss in 2 half-moves