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

EGTB: win in 2 half-moves

# move score
1 Rg7 win in 1 half-moves
2 Kc7 draw
3 Kc8 draw
4 Ke8 draw
5 Kd7 loss in 4 half-moves
6 Ke7 loss in 4 half-moves
7 Rb4 loss in 4 half-moves
8 Rb5 loss in 4 half-moves
9 Rb6 loss in 4 half-moves
10 Rb8 loss in 4 half-moves
11 Ra7 loss in 2 half-moves
12 Rc7 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rh7 loss in 2 half-moves
17 Rb1 loss in 1 half-moves
18 Rb2 loss in 1 half-moves
19 Rb3 loss in 1 half-moves