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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Kc8 win in 3 half-moves
3 Kcb6 win in 3 half-moves
4 Kd8 win in 3 half-moves
5 Ra8 win in 3 half-moves
6 Kc6 win in 5 half-moves
7 Ka5 win in 9 half-moves
8 Kcb7 draw
9 Kd6 draw
10 Kd7 draw
11 Kab6 loss in 2 half-moves
12 Kab7 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Rb7 loss in 2 half-moves