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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Kd7 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 Rb7 win in 3 half-moves
6 Kd8 win in 9 half-moves
7 Kb4 win in 17 half-moves
8 Kb6 win in 19 half-moves
9 Ka4 loss in 2 half-moves
10 Ka5 loss in 2 half-moves
11 Ka6 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Ra8 loss in 2 half-moves