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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Kb6 win in 5 half-moves
3 Kb7 win in 5 half-moves
4 Kb8 win in 5 half-moves
5 Kc6 win in 5 half-moves
6 Kc8 win in 5 half-moves
7 Kd7 win in 5 half-moves
8 Ra6 win in 5 half-moves
9 Ra8 win in 5 half-moves
10 Rb7 win in 5 half-moves
11 Kd8 loss in 4 half-moves
12 Kd6 loss in 2 half-moves
13 Ra1 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Ra5 loss in 2 half-moves