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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kb7 draw
3 Kc7 draw
4 Rb1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb5 draw
8 Rb6 draw
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rb7 loss in 2 half-moves