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

EGTB: win in 4 half-moves

# move score
1 K8c7 win in 3 half-moves
2 Kc5 win in 13 half-moves
3 Kc6 win in 13 half-moves
4 K6c7 draw
5 Ra8 draw
6 Rb8 draw
7 Rc1 draw
8 Rc2 draw
9 Rc3 draw
10 K6d7 loss in 2 half-moves
11 K6e7 loss in 2 half-moves
12 K8d7 loss in 2 half-moves
13 K8e7 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke8 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves