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

EGTB: win in 4 half-moves

# move score
1 Kc6 win in 3 half-moves
2 Ra6 draw
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Rb7 draw
7 Rb8 draw
8 Rc6 draw
9 Kc5 loss in 2 half-moves
10 Kc8 loss in 2 half-moves
11 Kd5 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke8 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 K6c7 loss in 1 half-moves
18 K6d7 loss in 1 half-moves
19 K6e7 loss in 1 half-moves
20 K8c7 loss in 1 half-moves
21 K8d7 loss in 1 half-moves
22 K8e7 loss in 1 half-moves