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 Rf8 win in 5 half-moves
3 Kg5 win in 7 half-moves
4 Kg6 draw
5 Kh1 draw
6 Kh3 draw
7 Kh4 draw
8 Kh6 draw
9 Rb8 draw
10 Rd8 draw
11 Rg8 draw
12 Rh7 draw
13 Kg1 loss in 2 half-moves
14 Kg2 loss in 2 half-moves
15 Kg3 loss in 2 half-moves
16 Kg4 loss in 2 half-moves
17 Ra8 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Re8 loss in 2 half-moves