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 Kf1 draw
3 Kf2 draw
4 Kf4 draw
5 Kf5 draw
6 Kf6 draw
7 Kg2 draw
8 Kg4 draw
9 Kg6 draw
10 Kh1 draw
11 Kh2 draw
12 Kh4 draw
13 Kh5 draw
14 Kh6 draw
15 Rc3 draw
16 Rd3 draw
17 Re3 draw
18 Rf3 draw
19 Rh3 draw
20 Ra3 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rg2 loss in 2 half-moves