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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Kg6 win in 7 half-moves
3 Kg7 win in 7 half-moves
4 Kd7 win in 9 half-moves
5 Kh7 win in 9 half-moves
6 Rh8 win in 21 half-moves
7 Ra8 draw
8 Rb8 draw
9 Rc8 draw
10 Rg8 draw
11 Kc5 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Kg5 loss in 2 half-moves
19 Kh5 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves