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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Rb5 draw
6 Rb6 draw
7 Kb5 loss in 4 half-moves
8 Ra7 loss in 4 half-moves
9 Rc7 loss in 4 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rg7 loss in 2 half-moves
15 Rh7 loss in 2 half-moves
16 Rd7 loss in 1 half-moves
17 Re7 loss in 1 half-moves
18 Rf7 loss in 1 half-moves