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 Kc8 draw
3 Kd1 draw
4 Ke8 draw
5 Kf1 draw
6 Re8 draw
7 Rf1 draw
8 Rf2 draw
9 Rf3 draw
10 Rh8 draw
11 Kc7 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rf5 loss in 2 half-moves
19 Rf6 loss in 2 half-moves
20 Rf7 loss in 2 half-moves