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

EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Kd6 draw
8 Kd8 draw
9 Kf5 draw
10 Kf6 draw
11 Kg5 draw
12 Kg7 draw
13 Kh5 draw
14 Kh6 draw
15 Kh7 draw
16 Ra3 draw
17 Re3 draw
18 Rf3 draw
19 Rg4 draw
20 Rh3 draw
21 Kd7 loss in 2 half-moves
22 Kf7 loss in 2 half-moves
23 Rb3 loss in 2 half-moves
24 Rc3 loss in 2 half-moves
25 Rd3 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rg2 loss in 2 half-moves