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 Ka7 draw
3 Kb8 draw
4 Kd1 draw
5 Ra1 draw
6 Rb2 draw
7 Rb7 draw
8 Rb8 draw
9 Kb2 loss in 2 half-moves
10 Kb7 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves