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

EGTB: draw

# move score
1 Kb6 draw
2 Kb8 draw
3 Kc6 draw
4 Kc8 draw
5 Kd8 draw
6 Ra8 draw
7 Ra6 loss in 8 half-moves
8 Kb7 loss in 6 half-moves
9 Rb7 loss in 6 half-moves
10 Kd7 loss in 4 half-moves
11 Ra1 loss in 4 half-moves
12 Kd6 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Ra5 loss in 2 half-moves