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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Kb5 draw
3 Kb6 draw
4 Kb7 draw
5 Kc5 draw
6 Kc7 draw
7 Kd5 draw
8 Kd6 draw
9 Kd7 draw
10 Ke6 draw
11 Ke7 draw
12 Ke8 draw
13 Kf8 draw
14 Kg7 draw
15 Kg8 draw
16 Ra1 draw
17 Ra7 draw
18 Ra8 draw
19 Kf6 loss in 2 half-moves
20 Kg6 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Ra5 loss in 2 half-moves