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 Kb7 draw
3 Kc7 draw
4 Kd7 draw
5 Ra2 loss in 2 half-moves
6 Rb4 loss in 2 half-moves
7 Rb5 loss in 2 half-moves
8 Rb6 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Re2 loss in 2 half-moves
12 Rf2 loss in 2 half-moves
13 Kb8 loss in 1 half-moves
14 Kd8 loss in 1 half-moves
15 Rb1 loss in 1 half-moves
16 Rc2 loss in 1 half-moves
17 Rd2 loss in 1 half-moves
18 Rg2 loss in 1 half-moves
19 Rh2 loss in 1 half-moves