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 Rb8 win in 3 half-moves
3 Kd6 win in 7 half-moves
4 Kdd8 win in 7 half-moves
5 Ra7 win in 7 half-moves
6 Kc6 win in 9 half-moves
7 Kdc7 win in 13 half-moves
8 Ra2 draw
9 Kb7 loss in 2 half-moves
10 Kcc7 loss in 2 half-moves
11 Kcd8 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Ke8 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves