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

EGTB: win in 22 half-moves

# move score
1 Kb5 win in 21 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Kb7 draw
6 Kc1 draw
7 Kc2 draw
8 Ke1 draw
9 Ra1 draw
10 Rb2 draw
11 Rb6 draw
12 Rb7 draw
13 Rb8 draw
14 Rc1 draw
15 Kd2 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves