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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Kb5 win in 3 half-moves
3 Kb7 win in 3 half-moves
4 Kc5 win in 3 half-moves
5 Kc7 win in 3 half-moves
6 Kd5 win in 3 half-moves
7 Kd6 win in 3 half-moves
8 Kd7 win in 3 half-moves
9 Kf6 win in 3 half-moves
10 Kf7 win in 3 half-moves
11 Kf8 win in 3 half-moves
12 Kg6 win in 3 half-moves
13 Kh6 win in 3 half-moves
14 Kh7 win in 3 half-moves
15 Rb5 win in 3 half-moves
16 Rb7 win in 3 half-moves
17 Rb8 win in 3 half-moves
18 Kg8 win in 5 half-moves
19 Kh8 win in 5 half-moves
20 Rb4 win in 5 half-moves
21 Ra6 draw
22 Rb1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves