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

EGTB: win in 2 half-moves

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