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

EGTB: win in 6 half-moves

# move score
1 Kb7 win in 5 half-moves
2 Kb6 draw
3 Kb8 draw
4 Kcd7 draw
5 Ke8 draw
6 Ra8 draw
7 Rb8 draw
8 Kc6 loss in 2 half-moves
9 Kd6 loss in 2 half-moves
10 Kdd7 loss in 2 half-moves
11 Ke7 loss in 2 half-moves