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 Ra6 draw
3 Rb6 draw
4 Rc6 draw
5 Rd6 draw
6 Rg7 draw
7 Rg8 draw
8 Rh6 draw
9 Kf1 loss in 2 half-moves
10 Kf2 loss in 2 half-moves
11 Kf3 loss in 2 half-moves
12 Kg1 loss in 2 half-moves
13 Kg3 loss in 2 half-moves
14 Kh1 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Kh3 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rg3 loss in 2 half-moves
20 Rg5 loss in 2 half-moves