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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kc6 win in 3 half-moves
3 Kc7 win in 3 half-moves
4 Rc8 win in 3 half-moves
5 Kd5 draw
6 Kd7 draw
7 Ke7 draw
8 Ra8 draw
9 Rb1 draw
10 Rb6 draw
11 Rb7 draw
12 Rd8 draw
13 Ke5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves