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 Kde8 draw
7 Kf7 draw
8 Kfe7 draw
9 Kfe8 draw
10 Kg7 draw
11 Kg8 draw
12 Ra4 draw
13 Rb3 draw
14 Rb5 draw
15 Rb6 draw
16 Rb7 draw
17 Rb8 draw
18 Rf4 draw
19 Rh4 draw
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rd4 loss in 2 half-moves
24 Re4 loss in 2 half-moves