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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Kf3 win in 7 half-moves
4 Kd3 draw
5 Kd4 draw
6 Ke3 draw
7 Kf4 draw
8 Ra1 draw
9 Rb2 draw
10 Rc1 draw
11 Kd5 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Kf5 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves