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 Kcd8 draw
4 Kd6 draw
5 Ke6 draw
6 Ke8 draw
7 Ked7 draw
8 Ked8 draw
9 Kf6 draw
10 Kf7 draw
11 Kf8 draw
12 Ra4 draw
13 Ra7 draw
14 Kb7 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Kcd7 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra6 loss in 2 half-moves