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 Rb1 draw
3 Rb3 draw
4 Rb8 draw
5 Ka4 loss in 2 half-moves
6 Ka6 loss in 2 half-moves
7 Kb4 loss in 2 half-moves
8 Kb5 loss in 2 half-moves
9 Kb6 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Rb4 loss in 2 half-moves
12 Rb5 loss in 2 half-moves
13 Rb6 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves
16 Rc7 loss in 1 half-moves
17 Re7 loss in 1 half-moves
18 Rf7 loss in 1 half-moves
19 Rg7 loss in 1 half-moves