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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Ra7 win in 7 half-moves
3 Kb4 draw
4 Kb7 draw
5 Kb8 draw
6 Kc7 draw
7 Kd4 draw
8 Kd7 draw
9 Kd8 draw
10 Ra2 draw
11 Ra6 draw
12 Ra8 draw
13 Kb3 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kd3 loss in 2 half-moves
18 Kd5 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