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

EGTB: win in 2 half-moves

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