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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Rb1 win in 1 half-moves
3 Rb5 win in 1 half-moves
4 Rb8 win in 1 half-moves
5 Rf3 win in 1 half-moves
6 Rh3 win in 1 half-moves
7 Rb2 loss in 2 half-moves
8 Rb4 loss in 2 half-moves
9 Rb6 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rc3 loss in 2 half-moves
12 Rd3 loss in 2 half-moves
13 Re3 loss in 2 half-moves
14 Rg3 loss in 2 half-moves