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

EGTB: win in 2 half-moves

# move score
1 Rh8 win in 1 half-moves
2 Kc7 draw
3 Kc8 draw
4 Kd6 draw
5 Ke6 draw
6 Ke7 draw
7 Re8 draw
8 Rf8 draw
9 Rg8 draw
10 Ke8 loss in 14 half-moves
11 Kc6 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc8 loss in 2 half-moves