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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Kc8 draw
3 Ke8 draw
4 Kf5 draw
5 Kg5 draw
6 Kg6 draw
7 Kg7 draw
8 Ra7 draw
9 Re7 draw
10 Rf8 draw
11 Rh7 draw
12 Kc7 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Kde7 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kfe7 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rd7 loss in 2 half-moves