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 Kb7 loss in 10 half-moves
3 Kb8 loss in 10 half-moves
4 Kc8 loss in 10 half-moves
5 Rh7 loss in 10 half-moves
6 Kd7 loss in 8 half-moves
7 Rc8 loss in 8 half-moves
8 Rh6 loss in 8 half-moves
9 Kd8 loss in 6 half-moves
10 Kb6 loss in 4 half-moves
11 Kc6 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Ra8 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 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 Rh5 loss in 2 half-moves
22 Rh1 loss in 1 half-moves