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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kb5 draw
3 Kc5 draw
4 Kd5 draw
5 Kd6 draw
6 Rb3 draw
7 Rb8 draw
8 Rf7 draw
9 Rh7 draw
10 Kc7 loss in 28 half-moves
11 Ra7 loss in 28 half-moves
12 Rb6 loss in 28 half-moves
13 Rc7 loss in 10 half-moves
14 Kb6 loss in 8 half-moves
15 Kd7 loss in 4 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves