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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Kd7 draw
3 Ke7 draw
4 Kf7 draw
5 Ra7 draw
6 Rb7 draw
7 Rg1 draw
8 Rg2 draw
9 Rg3 draw
10 Rg5 draw
11 Rg6 draw
12 Kd5 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Kf5 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh7 loss in 2 half-moves