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

EGTB: win in 6 half-moves

# move score
1 Kb5 win in 5 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kd3 draw
5 Kd4 draw
6 Kd5 draw
7 Ke3 draw
8 Ke5 draw
9 Kf3 draw
10 Kf4 draw
11 Kf5 draw
12 Ra1 draw
13 Ra2 draw
14 Ra3 draw
15 Ra5 draw
16 Rb4 draw
17 Kb6 loss in 2 half-moves
18 Kb7 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves