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

EGTB: win in 2 half-moves

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