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 Kc5 draw
3 Kc7 draw
4 Rb4 draw
5 Rb6 draw
6 Rb8 draw
7 Rd7 draw
8 Kd6 loss in 8 half-moves
9 Ra7 loss in 8 half-moves
10 Kb6 loss in 6 half-moves
11 Kd5 loss in 6 half-moves
12 Rc7 loss in 6 half-moves
13 Re7 loss in 6 half-moves
14 Kb5 loss in 4 half-moves
15 Kd7 loss in 4 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh7 loss in 2 half-moves