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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rb3 win in 1 half-moves
3 Rb5 win in 1 half-moves
4 Rb7 win in 1 half-moves
5 Rc1 win in 1 half-moves
6 Rd1 win in 1 half-moves
7 Rh1 win in 1 half-moves
8 Kb6 draw
9 Ra1 draw
10 Rb6 draw
11 Kb7 loss in 10 half-moves
12 Kb5 loss in 8 half-moves
13 Ka5 loss in 6 half-moves
14 Ka7 loss in 6 half-moves
15 Rb4 loss in 1 half-moves
16 Rb8 loss in 1 half-moves
17 Re1 loss in 1 half-moves
18 Rf1 loss in 1 half-moves
19 Rg1 loss in 1 half-moves