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

EGTB: win in 4 half-moves

# move score
1 Kd7 win in 3 half-moves
2 Kdc7 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Ra6 win in 5 half-moves
5 Ka7 draw
6 Ka8 draw
7 Kb7 draw
8 Kbc7 draw
9 Kc6 draw
10 Kc8 draw
11 Ke6 draw
12 Ke7 draw
13 Rb1 draw
14 Kc5 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rc6 loss in 2 half-moves