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