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

EGTB: win in 2 half-moves

# move score
1 Ra6 win in 1 half-moves
2 Kd8 draw
3 Ke7 draw
4 Kf7 draw
5 Ra7 draw
6 Ra8 draw
7 Rb4 draw
8 Rc4 draw
9 Kf8 loss in 4 half-moves
10 Kd7 loss in 2 half-moves
11 Ra1 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Ra5 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves
18 Rd4 loss in 1 half-moves
19 Re4 loss in 1 half-moves