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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Rb4 win in 5 half-moves
3 Rb5 win in 5 half-moves
4 Kd3 draw
5 Kd4 draw
6 Kd5 draw
7 Ke3 draw
8 Ke5 draw
9 Ra7 draw
10 Rb1 draw
11 Rb6 draw
12 Rb8 draw
13 Rc7 draw
14 Re7 draw
15 Kf3 loss in 2 half-moves
16 Kf4 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves