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

EGTB: win in 22 half-moves

# move score
1 Ra1 win in 21 half-moves
2 Kb6 draw
3 Kc1 draw
4 Kc2 draw
5 Kd2 draw
6 Kd6 draw
7 Ke1 draw
8 Ke2 draw
9 Ra3 draw
10 Rb6 draw
11 Kb5 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kc7 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Ra8 loss in 2 half-moves