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 Kb8 win in 3 half-moves
3 Rb8 win in 9 half-moves
4 Kb5 win in 15 half-moves
5 K6b7 draw
6 K6c7 draw
7 K6d7 draw
8 K8b7 draw
9 K8c7 draw
10 K8d7 draw
11 Kc5 draw
12 Ra6 draw
13 Ra7 draw
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd8 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 Ra4 loss in 2 half-moves
21 Ra5 loss in 2 half-moves