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

EGTB: win in 4 half-moves

# move score
1 Rh6 win in 3 half-moves
2 Kf7 draw
3 Kf8 draw
4 Kgg7 draw
5 Kgh8 draw
6 Khg7 draw
7 Khh8 draw
8 Rb1 draw
9 Rh2 draw
10 Kg6 loss in 2 half-moves
11 Kh6 loss in 2 half-moves
12 Ra1 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rg1 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rh4 loss in 2 half-moves
20 Rh5 loss in 2 half-moves