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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Rc7 win in 1 half-moves
3 Ka1 loss in 2 half-moves
4 Ka3 loss in 2 half-moves
5 Ka7 loss in 2 half-moves
6 Kb3 loss in 2 half-moves
7 Kb8 loss in 2 half-moves
8 Ra7 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves
18 Kb1 loss in 1 half-moves
19 Kb2 loss in 1 half-moves
20 Rb1 loss in 1 half-moves
21 Rb2 loss in 1 half-moves