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

EGTB: win in 8 half-moves

# move score
1 Kc4 win in 7 half-moves
2 Kc2 draw
3 Kc3 draw
4 Kd2 draw
5 Kd4 draw
6 Ke2 draw
7 Ke3 draw
8 Ke4 draw
9 Ra8 draw
10 Rb1 draw
11 Rb3 draw
12 Kb7 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves