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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kc1 win in 3 half-moves
3 Kc3 win in 3 half-moves
4 Kcb3 win in 3 half-moves
5 Ra1 win in 3 half-moves
6 Ra3 win in 3 half-moves
7 Kd1 win in 5 half-moves
8 Kd2 win in 5 half-moves
9 Kd3 win in 5 half-moves
10 Ka3 win in 7 half-moves
11 Kab3 win in 9 half-moves
12 Kb4 win in 9 half-moves
13 Ka5 draw
14 Kb2 draw
15 Kb5 draw
16 Rb2 loss in 2 half-moves