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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Kb8 draw
3 Kc8 draw
4 Kd6 draw
5 Kd7 draw
6 Kd8 draw
7 Ra7 draw
8 Rb1 draw
9 Rb2 draw
10 Rb3 draw
11 Rb4 draw
12 Rb6 draw
13 Kb6 loss in 2 half-moves
14 Kc6 loss in 2 half-moves
15 Rb8 loss in 2 half-moves