Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Kb8 draw
3 Kd1 draw
4 Kd8 draw
5 Kf1 draw
6 Re8 draw
7 Rf8 draw
8 Rh1 draw
9 Rh2 draw
10 Rh3 draw
11 Kb7 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kd2 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rh5 loss in 2 half-moves
20 Rh6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves