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

EGTB: win in 4 half-moves

# move score
1 Kc1 win in 3 half-moves
2 Kc4 win in 7 half-moves
3 Kd4 win in 7 half-moves
4 Rb5 win in 7 half-moves
5 Kb4 win in 11 half-moves
6 Kb5 draw
7 Kb6 draw
8 Kc6 draw
9 Kd5 draw
10 Kd6 draw
11 Ra1 draw
12 Rb7 draw
13 Rc1 draw
14 Kc2 loss in 2 half-moves
15 Kd2 loss in 2 half-moves
16 Ke1 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rb8 loss in 2 half-moves