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

EGTB: win in 6 half-moves

# move score
1 Kb8 win in 5 half-moves
2 Kb6 win in 7 half-moves
3 Rb6 win in 7 half-moves
4 K8b7 draw
5 K8c7 draw
6 K8d7 draw
7 Kd6 draw
8 Kd8 draw
9 Ra2 draw
10 Ra8 draw
11 K6b7 loss in 2 half-moves
12 K6c7 loss in 2 half-moves
13 K6d7 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra7 loss in 2 half-moves