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 Ra6 draw
3 Rb6 draw
4 Rc6 draw
5 Rd6 draw
6 Rg5 draw
7 Kf2 loss in 2 half-moves
8 Kf3 loss in 2 half-moves
9 Kf4 loss in 2 half-moves
10 Kg1 loss in 2 half-moves
11 Kg4 loss in 2 half-moves
12 Kgg2 loss in 2 half-moves
13 Kgh3 loss in 2 half-moves
14 Kh1 loss in 2 half-moves
15 Kh4 loss in 2 half-moves
16 Khg2 loss in 2 half-moves
17 Khh3 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh6 loss in 2 half-moves