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

EGTB: win in 2 half-moves

# move score
1 Ra6 win in 1 half-moves
2 Rb2 win in 1 half-moves
3 Kd6 draw
4 Rb1 draw
5 Rb3 draw
6 Rb4 draw
7 Rb8 draw
8 Kb5 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kc5 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb7 loss in 2 half-moves