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

EGTB: win in 2 half-moves

# move score
1 Rh6 win in 1 half-moves
2 Kh3 loss in 16 half-moves
3 Rh8 loss in 6 half-moves
4 Rb7 loss in 4 half-moves
5 Rc7 loss in 4 half-moves
6 Kg3 loss in 2 half-moves
7 Kg4 loss in 2 half-moves
8 Kg5 loss in 2 half-moves
9 Kh5 loss in 2 half-moves
10 Rd7 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg7 loss in 2 half-moves
14 Rh5 loss in 2 half-moves
15 Ra7 loss in 1 half-moves