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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Kcd8 win in 3 half-moves
3 Kb7 win in 5 half-moves
4 Kc8 win in 5 half-moves
5 Ra6 win in 5 half-moves
6 Kb6 draw
7 Kc6 draw
8 Kcd7 draw
9 Kd6 draw
10 Ke7 draw
11 Ked7 draw
12 Ked8 draw
13 Kf7 draw
14 Kf8 draw
15 Ra4 draw
16 Ra5 draw
17 Ra8 draw
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Rb7 loss in 2 half-moves