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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Kc5 win in 3 half-moves
3 Kb5 win in 7 half-moves
4 Kc4 win in 7 half-moves
5 Kc7 win in 9 half-moves
6 Ra7 win in 9 half-moves
7 Ka3 draw
8 Ka4 draw
9 Kb3 draw
10 Kc3 draw
11 Kc6 draw
12 Rc7 draw
13 Kc8 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb8 loss in 2 half-moves