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

EGTB: win in 4 half-moves

# move score
1 Kc4 win in 3 half-moves
2 Kc6 win in 3 half-moves
3 Rb6 win in 3 half-moves
4 Rb7 win in 3 half-moves
5 Ra5 win in 5 half-moves
6 Rb8 win in 7 half-moves
7 Ka6 draw
8 Ka8 draw
9 Kb6 draw
10 Kb7 draw
11 Kb8 draw
12 Kc5 draw
13 Kd4 draw
14 Kd6 draw
15 Ke4 draw
16 Ke5 draw
17 Ke6 draw
18 Rb3 draw
19 Rb4 draw
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rc5 loss in 2 half-moves