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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kd8 draw
3 Ra1 draw
4 Ra2 draw
5 Ra3 draw
6 Ra4 draw
7 Ra5 draw
8 Ra6 draw
9 Kd7 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Kf7 loss in 2 half-moves
12 Kf8 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves