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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ka6 win in 5 half-moves
3 Kb4 win in 5 half-moves
4 Kb5 win in 5 half-moves
5 Kc6 win in 5 half-moves
6 Ka8 draw
7 Kb3 draw
8 Kb8 draw
9 Kc5 draw
10 Kc7 draw
11 Kc8 draw
12 Ra1 draw
13 Ra2 draw
14 Ra4 draw
15 Ra6 draw
16 Ra8 draw
17 Kc3 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Ra5 loss in 2 half-moves