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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kb6 win in 3 half-moves
3 Kc6 win in 3 half-moves
4 Kc8 win in 3 half-moves
5 Kcb8 win in 3 half-moves
6 Kd6 win in 3 half-moves
7 Kd8 win in 3 half-moves
8 Rb6 win in 3 half-moves
9 Rb8 win in 3 half-moves
10 Kd7 win in 5 half-moves
11 Ra7 win in 5 half-moves
12 Rb5 win in 5 half-moves
13 Ka7 draw
14 Kab8 draw
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves