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

EGTB: win in 2 half-moves

# move score
1 Ra2 win in 1 half-moves
2 Rc4 win in 1 half-moves
3 Ka6 draw
4 Kd3 draw
5 Ke3 draw
6 Kf3 draw
7 Kf4 draw
8 Ra1 draw
9 Ra3 draw
10 Rb4 draw
11 Kb4 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Rd4 loss in 2 half-moves