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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Kb5 win in 7 half-moves
3 Kc5 win in 7 half-moves
4 Kb4 win in 9 half-moves
5 Kb8 win in 9 half-moves
6 Kb7 win in 11 half-moves
7 Kc7 win in 11 half-moves
8 Ra4 win in 11 half-moves
9 Kb3 draw
10 Kc3 draw
11 Ra1 draw
12 Ra2 draw
13 Ra3 draw
14 Kd3 loss in 2 half-moves
15 Kd4 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kd7 loss in 2 half-moves
18 Kd8 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Ra7 loss in 2 half-moves