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

EGTB: win in 4 half-moves

# move score
1 Ka4 win in 3 half-moves
2 Ra2 win in 3 half-moves
3 Kb1 win in 7 half-moves
4 Kb2 win in 7 half-moves
5 Ka6 draw
6 Kb4 draw
7 Kc2 draw
8 Kc4 draw
9 Kc5 draw
10 Kd1 draw
11 Kd2 draw
12 Ra1 draw
13 Ra3 draw
14 Ra4 draw
15 Ra6 draw
16 Kb6 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Ra8 loss in 2 half-moves