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

EGTB: win in 4 half-moves

# move score
1 Kd2 win in 3 half-moves
2 Kd4 win in 3 half-moves
3 Ke2 win in 3 half-moves
4 Ke4 win in 3 half-moves
5 Rb4 win in 3 half-moves
6 Ka3 win in 7 half-moves
7 Ka5 win in 7 half-moves
8 Kd3 win in 7 half-moves
9 Rb1 win in 7 half-moves
10 Rb2 win in 7 half-moves
11 Rb5 win in 7 half-moves
12 Kb4 win in 13 half-moves
13 Ra3 win in 13 half-moves
14 Kb5 win in 19 half-moves
15 Kf2 draw
16 Kf3 draw
17 Kf4 draw
18 Rb6 draw
19 Rc3 draw
20 Rb7 loss in 2 half-moves
21 Rb8 loss in 2 half-moves
22 Rd3 loss in 2 half-moves