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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kb8 win in 3 half-moves
4 Kcd7 win in 3 half-moves
5 Kcd8 win in 3 half-moves
6 Kd6 win in 3 half-moves
7 Rb8 win in 3 half-moves
8 Ra8 win in 5 half-moves
9 Kc6 win in 7 half-moves
10 Ked8 win in 7 half-moves
11 Rd8 draw
12 Ke7 loss in 2 half-moves
13 Ked7 loss in 2 half-moves
14 Kf7 loss in 2 half-moves
15 Kf8 loss in 2 half-moves