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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb1 draw
3 Rb1 draw
4 Rb7 draw
5 Kd1 loss in 4 half-moves
6 Ra6 loss in 4 half-moves
7 Rg6 loss in 4 half-moves
8 Rh6 loss in 4 half-moves
9 Kb2 loss in 2 half-moves
10 Kc2 loss in 2 half-moves
11 Kd2 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf6 loss in 1 half-moves