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

EGTB: win in 4 half-moves

# move score
1 Kc3 win in 3 half-moves
2 Kd3 win in 3 half-moves
3 Ra2 win in 3 half-moves
4 Kb2 win in 5 half-moves
5 Ke3 win in 5 half-moves
6 Ka2 win in 7 half-moves
7 Ka1 draw
8 Kc1 draw
9 Kc2 draw
10 Kc4 draw
11 Ke4 draw
12 Ra1 draw
13 Ra3 draw
14 Rb4 draw
15 Kc5 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Ke5 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Ra8 loss in 2 half-moves
22 Rc4 loss in 2 half-moves