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 Ka5 draw
3 Ka7 draw
4 Kb5 draw
5 Kb6 draw
6 Kb7 draw
7 Kc2 draw
8 Kc4 draw
9 Kd2 draw
10 Ke2 draw
11 Ke3 draw
12 Ra3 draw
13 Rb1 draw
14 Rb2 draw
15 Rb4 draw
16 Rb8 draw
17 Rc3 draw
18 Kd4 loss in 2 half-moves
19 Ke4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb7 loss in 2 half-moves