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

EGTB: win in 3 half-moves

# move score
1 Rb1 win in 2 half-moves
2 Rb2 win in 2 half-moves
3 Rb3 win in 2 half-moves
4 Rb4 win in 3 half-moves
5 Rb8 win in 3 half-moves
6 Ra7 win in 4 half-moves
7 Rb5 win in 4 half-moves
8 Rc7 win in 5 half-moves
9 d8=B loss in 2 half-moves
10 d8=K loss in 2 half-moves
11 d8=N loss in 2 half-moves
12 d8=Q loss in 2 half-moves
13 d8=R loss in 2 half-moves
14 Rb6 loss in 2 half-moves