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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Ka3 loss in 2 half-moves
3 Ka5 loss in 2 half-moves
4 Ka6 loss in 2 half-moves
5 Ka8 loss in 2 half-moves
6 Kb3 loss in 2 half-moves
7 Kb4 loss in 2 half-moves
8 Kb5 loss in 2 half-moves
9 Kb6 loss in 2 half-moves
10 Kb8 loss in 2 half-moves
11 Ra6 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Kc6 loss in 1 half-moves
14 Kc7 loss in 1 half-moves
15 Kc8 loss in 1 half-moves