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