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

EGTB: win in 2 half-moves

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