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 Kgg4 draw
3 Khg4 draw
4 Khh4 draw
5 Rb2 draw
6 Rg1 draw
7 Rg3 draw
8 Rh2 draw
9 Kf4 loss in 2 half-moves
10 Kf5 loss in 2 half-moves
11 Kf6 loss in 2 half-moves
12 Kgg6 loss in 2 half-moves
13 Kgh4 loss in 2 half-moves
14 Kgh6 loss in 2 half-moves
15 Khg6 loss in 2 half-moves
16 Khh6 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf2 loss in 2 half-moves