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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kb3 win in 3 half-moves
3 Kb4 win in 3 half-moves
4 Kc2 win in 3 half-moves
5 Ra2 win in 3 half-moves
6 Ra4 win in 3 half-moves
7 Rb3 win in 3 half-moves
8 Ra1 draw
9 Kc4 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Ra5 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Ra8 loss in 2 half-moves