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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Kc6 draw
3 Kc8 draw
4 Kd6 draw
5 Kd7 draw
6 Kd8 draw
7 Rb1 draw
8 Rb2 draw
9 Rb3 draw
10 Rb8 draw
11 Kb6 loss in 20 half-moves
12 Kb8 loss in 14 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves