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 Kb7 loss in 2 half-moves
3 Kb8 loss in 2 half-moves
4 Kc7 loss in 2 half-moves
5 Kd7 loss in 2 half-moves
6 Kd8 loss in 2 half-moves
7 Ra5 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc5 loss in 2 half-moves
12 Rd5 loss in 2 half-moves
13 Re5 loss in 2 half-moves
14 Rf5 loss in 2 half-moves
15 Rh5 loss in 2 half-moves
16 Rb2 loss in 1 half-moves
17 Rb3 loss in 1 half-moves
18 Rb4 loss in 1 half-moves
19 Rg5 loss in 1 half-moves