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 Kc5 draw
3 Kd5 draw
4 Ra1 draw
5 Ra2 draw
6 Ra3 draw
7 Ra6 draw
8 Ra7 draw
9 Ra8 draw
10 Rc4 draw
11 Kc3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Ke3 loss in 2 half-moves
15 Ke4 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Ra5 loss in 2 half-moves