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

EGTB: win in 40 half-moves

# move score
1 Kb5 win in 39 half-moves
2 Kc6 win in 39 half-moves
3 Kab6 win in 41 half-moves
4 Rb7 win in 41 half-moves
5 Ka5 win in 43 half-moves
6 Kab7 win in 43 half-moves
7 Ra8 win in 43 half-moves
8 Kb8 win in 45 half-moves
9 Kc8 win in 45 half-moves
10 Kcb6 win in 45 half-moves
11 Kcb7 win in 45 half-moves
12 Kd6 win in 45 half-moves
13 Kd7 win in 45 half-moves
14 Kd8 win in 45 half-moves