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

EGTB: win in 10 half-moves

# move score
1 Rh3 win in 9 half-moves
2 Ra8 draw
3 Rb8 draw
4 Rf8 draw
5 Rg8 draw
6 Rh5 draw
7 Rh7 draw
8 Rc8 loss in 2 half-moves
9 Rd8 loss in 2 half-moves
10 Re8 loss in 2 half-moves
11 Rh1 loss in 2 half-moves
12 Rh2 loss in 2 half-moves
13 Rh4 loss in 2 half-moves
14 Rh6 loss in 2 half-moves