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

EGTB: win in 2 half-moves

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