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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rb1 draw
3 Rb2 draw
4 Ka7 loss in 2 half-moves
5 Kb7 loss in 2 half-moves
6 Kb8 loss in 2 half-moves
7 Ra6 loss in 2 half-moves
8 Rb4 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rh6 loss in 2 half-moves
13 Rc6 loss in 1 half-moves
14 Rd6 loss in 1 half-moves
15 Re6 loss in 1 half-moves
16 Rf6 loss in 1 half-moves
17 Rg6 loss in 1 half-moves