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