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 Ka2 draw
3 Ka3 draw
4 Kc1 draw
5 Kc2 draw
6 Ra7 draw
7 Rb3 draw
8 Rc7 draw
9 Kb1 loss in 14 half-moves
10 Ka1 loss in 12 half-moves
11 Kb3 loss in 10 half-moves
12 Kc3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves
20 Rf7 loss in 1 half-moves