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