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

EGTB: win in 4 half-moves

# move score
1 Rh7 win in 3 half-moves
2 Kf5 loss in 6 half-moves
3 Kf7 loss in 6 half-moves
4 Kg5 loss in 6 half-moves
5 Kg6 loss in 6 half-moves
6 Kg7 loss in 6 half-moves
7 Rg1 loss in 6 half-moves
8 Rh2 loss in 6 half-moves
9 Rh6 loss in 6 half-moves
10 Re1 loss in 4 half-moves
11 Rf1 loss in 4 half-moves
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rc1 loss in 2 half-moves
18 Rd1 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 Rh8 loss in 1 half-moves