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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kd3 draw
3 Kd4 draw
4 Ke3 draw
5 Kf3 draw
6 Kf4 draw
7 Ra1 draw
8 Ra2 draw
9 Ra3 draw
10 Rc4 draw
11 Rd4 draw
12 Kd5 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Ra6 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Ra8 loss in 2 half-moves