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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kb7 win in 1 half-moves
3 Kd7 win in 1 half-moves
4 Ra4 win in 1 half-moves
5 Ra1 draw
6 Ra2 draw
7 Ra3 draw
8 Ra5 draw
9 Rb6 draw
10 Kc5 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Kb6 loss in 1 half-moves
16 Kd6 loss in 1 half-moves