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

EGTB: win in 6 half-moves

# move score
1 Ka6 win in 5 half-moves
2 Kc5 win in 5 half-moves
3 Kc6 win in 5 half-moves
4 Ra8 win in 9 half-moves
5 Ka4 draw
6 Ka5 draw
7 Kb4 draw
8 Kc4 draw
9 Rb6 draw
10 Kb6 loss in 4 half-moves
11 Kb7 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Kd8 loss in 2 half-moves
15 Rb7 loss in 2 half-moves