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 Kf7 draw
3 Kf8 draw
4 Rh5 draw
5 Ka2 loss in 2 half-moves
6 Ka3 loss in 2 half-moves
7 Ka4 loss in 2 half-moves
8 Kb2 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kc2 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Kd8 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rh1 loss in 2 half-moves
18 Rh2 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rh4 loss in 2 half-moves
21 Rh6 loss in 2 half-moves
22 Rh7 loss in 2 half-moves