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

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Kc7 draw
3 Kc8 draw
4 Kd7 draw
5 Kde7 draw
6 Ke5 draw
7 Ke6 draw
8 Ke8 draw
9 Kf5 draw
10 Kf7 draw
11 Kfe7 draw
12 Kg5 draw
13 Kg6 draw
14 Kg7 draw
15 Ra3 draw
16 Ra5 draw
17 Ra6 draw
18 Ra7 draw
19 Ra8 draw
20 Re4 draw
21 Rf4 draw
22 Rh4 draw
23 Ra1 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Rb4 loss in 2 half-moves
26 Rc4 loss in 2 half-moves
27 Rd4 loss in 2 half-moves