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 Kc2 draw
3 Rb3 draw
4 Kc1 loss in 12 half-moves
5 Kb2 loss in 10 half-moves
6 Ra7 loss in 10 half-moves
7 Rc7 loss in 10 half-moves
8 Ka2 loss in 8 half-moves
9 Ka1 loss in 6 half-moves
10 Rb2 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Rh7 loss in 1 half-moves