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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Re3 win in 3 half-moves
4 Rh3 win in 3 half-moves
5 Kb5 win in 5 half-moves
6 Ra3 win in 5 half-moves
7 Rb4 win in 5 half-moves
8 Ka4 loss in 4 half-moves
9 Ka6 loss in 4 half-moves
10 Kb4 loss in 4 half-moves
11 Rb1 loss in 4 half-moves
12 Rb2 loss in 4 half-moves
13 Kb6 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rg3 loss in 2 half-moves