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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kbb7 win in 3 half-moves
3 Kc5 win in 3 half-moves
4 Kc7 win in 3 half-moves
5 Ra5 win in 3 half-moves
6 Kc6 win in 5 half-moves
7 Ka8 win in 7 half-moves
8 Kab7 win in 7 half-moves
9 Kb8 win in 7 half-moves
10 Ka5 draw
11 Ra3 draw
12 Ra4 draw
13 Ra1 loss in 2 half-moves
14 Ra2 loss in 2 half-moves