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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Ra7 win in 9 half-moves
4 Kd6 draw
5 Kd8 draw
6 Ke7 draw
7 Ked7 draw
8 Kf8 draw
9 Ra3 draw
10 Ra8 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 Kcd7 loss in 2 half-moves
16 Kd5 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra5 loss in 2 half-moves