Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kb8 draw
3 Kd8 draw
4 Kg8 draw
5 Kh7 draw
6 Ra7 draw
7 Rb8 draw
8 Rc7 draw
9 Rg7 draw
10 Rh7 draw
11 Kc7 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Kg7 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf7 loss in 2 half-moves