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 Kc7 draw
3 Kd7 draw
4 Ra8 draw
5 Rb1 draw
6 Rb2 draw
7 Kb7 loss in 2 half-moves
8 Kd8 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb6 loss in 2 half-moves
12 Rb7 loss in 2 half-moves