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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kc2 win in 5 half-moves
3 Ke2 win in 5 half-moves
4 Kf1 win in 5 half-moves
5 Kf2 win in 5 half-moves
6 Rb3 win in 5 half-moves
7 Rb4 win in 5 half-moves
8 Rb8 win in 5 half-moves
9 Ked1 win in 7 half-moves
10 Ked2 win in 7 half-moves
11 Kb2 draw
12 Kcd1 draw
13 Kcd2 draw
14 Ra1 draw
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves