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 Rb8 win in 3 half-moves
3 Kb5 win in 5 half-moves
4 Kb8 win in 5 half-moves
5 Ka5 win in 7 half-moves
6 Ka7 draw
7 Kab7 draw
8 Kd8 draw
9 Kc7 loss in 2 half-moves
10 Kcb7 loss in 2 half-moves
11 Kd7 loss in 2 half-moves
12 Ra7 loss in 2 half-moves