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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rf7 win in 3 half-moves
3 Kc7 win in 5 half-moves
4 Kc8 win in 5 half-moves
5 Ke8 win in 5 half-moves
6 Rb1 win in 5 half-moves
7 Rb8 win in 5 half-moves
8 Ra7 loss in 4 half-moves
9 Rc7 loss in 4 half-moves
10 Kd7 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves