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

EGTB: win in 4 half-moves

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