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

EGTB: win in 2 half-moves

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