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

EGTB: win in 2 half-moves

# move score
1 a3 win in 1 half-moves
2 Ra7 win in 1 half-moves
3 Rb2 win in 1 half-moves
4 Rb4 win in 1 half-moves
5 Re7 win in 1 half-moves
6 Rg7 win in 1 half-moves
7 Rb1 loss in 2 half-moves
8 Rb3 loss in 2 half-moves
9 Rb8 loss in 2 half-moves
10 Rd7 loss in 2 half-moves
11 Rf7 loss in 2 half-moves
12 Rh7 loss in 2 half-moves
13 Rb5 loss in 1 half-moves
14 Rb6 loss in 1 half-moves
15 Rc7 loss in 1 half-moves