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 Kcd7 win in 3 half-moves
3 Kdd7 win in 3 half-moves
4 Ke7 win in 5 half-moves
5 Kb8 draw
6 Kd6 draw
7 Ke8 draw
8 Kb6 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Ra8 loss in 2 half-moves
11 Rb8 loss in 2 half-moves