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 Rb6 win in 1 half-moves
3 Rh7 win in 1 half-moves
4 Kb8 draw
5 Kc7 draw
6 Kd7 draw
7 Kd8 draw
8 Ra7 draw
9 Rb8 draw
10 Rd7 draw
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rb4 loss in 1 half-moves
18 Rb5 loss in 1 half-moves