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 Kb3 draw
3 Kb4 draw
4 Kb5 draw
5 Kc3 draw
6 Kc5 draw
7 Rb1 draw
8 Rb4 draw
9 Rc7 draw
10 Rd7 draw
11 Kd4 loss in 10 half-moves
12 Kd5 loss in 6 half-moves
13 Kd3 loss in 4 half-moves
14 Re7 loss in 4 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh7 loss in 2 half-moves
22 Ra7 loss in 1 half-moves