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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Rg7 win in 3 half-moves
4 g4 win in 5 half-moves
5 Rb6 win in 7 half-moves
6 Ra7 win in 9 half-moves
7 Rc7 win in 9 half-moves
8 Rb8 loss in 6 half-moves
9 Rb4 loss in 4 half-moves
10 Rd7 loss in 4 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Re7 loss in 2 half-moves
14 Rf7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves