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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Kb6 win in 3 half-moves
3 Kb8 win in 3 half-moves
4 Kc6 win in 3 half-moves
5 Kc8 win in 3 half-moves
6 Ra6 win in 3 half-moves
7 Ra8 win in 3 half-moves
8 Rb7 win in 5 half-moves
9 Ka3 win in 9 half-moves
10 Kb7 win in 9 half-moves
11 Kd6 win in 9 half-moves
12 Kd7 win in 9 half-moves
13 Kd8 win in 9 half-moves
14 Kb3 win in 17 half-moves
15 Kb4 win in 17 half-moves
16 Ka5 draw
17 Ra5 draw