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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ra7 draw
3 Rg7 draw
4 Rh7 draw
5 Kb5 loss in 2 half-moves
6 Kc5 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kc7 loss in 2 half-moves
9 Rc7 loss in 2 half-moves
10 Rd7 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Ka5 loss in 1 half-moves
14 Ka6 loss in 1 half-moves
15 Ka7 loss in 1 half-moves