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 Kf1 draw
3 Kf2 draw
4 Kg2 draw
5 Kh1 draw
6 Kh2 draw
7 Rf6 draw
8 Rg5 draw
9 Rg8 draw
10 Rh6 draw
11 Ra6 loss in 2 half-moves
12 Rb6 loss in 2 half-moves
13 Rc6 loss in 2 half-moves
14 Rg2 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rd6 loss in 1 half-moves
18 Re6 loss in 1 half-moves