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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Ka6 win in 3 half-moves
3 Ka8 win in 3 half-moves
4 Kb8 win in 3 half-moves
5 Ke7 win in 3 half-moves
6 Rb8 win in 3 half-moves
7 Rc7 win in 3 half-moves
8 Kb6 win in 7 half-moves
9 Kc7 win in 7 half-moves
10 Kc6 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kd8 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves