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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kcd6 win in 3 half-moves
4 Kc5 win in 5 half-moves
5 Ke7 win in 5 half-moves
6 Kd5 win in 7 half-moves
7 Ra7 win in 9 half-moves
8 Kb7 draw
9 Rb7 draw
10 Kc8 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Kdd6 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke8 loss in 2 half-moves
15 Rc8 loss in 2 half-moves