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 Rb1 draw
3 Rb2 draw
4 Rb3 draw
5 Rb4 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rg7 draw
10 Ka1 loss in 2 half-moves
11 Ka3 loss in 2 half-moves
12 Kab1 loss in 2 half-moves
13 Kab2 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kc2 loss in 2 half-moves
16 Kcb1 loss in 2 half-moves
17 Kcb2 loss in 2 half-moves
18 Kd1 loss in 2 half-moves
19 Kd2 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rh7 loss in 2 half-moves