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 Kb2 draw
4 Kc2 draw
5 Kd1 draw
6 Kd2 draw
7 Rb1 draw
8 Rb4 draw
9 Rb5 draw
10 Rb6 draw
11 Rc7 draw
12 Rd7 draw
13 Rb2 loss in 2 half-moves
14 Rb3 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 2 half-moves
19 Ra7 loss in 1 half-moves