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

EGTB: win in 10 half-moves

# move score
1 Rb4 win in 9 half-moves
2 Kb4 win in 11 half-moves
3 Kd1 draw
4 Kd2 draw
5 Kd4 draw
6 Kd5 draw
7 Ke1 draw
8 Ked3 draw
9 Kf1 draw
10 Kf2 draw
11 Ra2 draw
12 Kb3 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kcd3 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Kf3 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra3 loss in 2 half-moves
21 Ra5 loss in 2 half-moves
22 Ra6 loss in 2 half-moves
23 Ra7 loss in 2 half-moves
24 Ra8 loss in 2 half-moves