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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kf7 loss in 12 half-moves
3 Rh8 loss in 12 half-moves
4 Kh7 loss in 10 half-moves
5 Kh8 loss in 10 half-moves
6 Kf6 loss in 6 half-moves
7 Kf8 loss in 6 half-moves
8 Kg6 loss in 4 half-moves
9 Kh6 loss in 4 half-moves
10 Ra8 loss in 2 half-moves
11 Rc8 loss in 2 half-moves
12 Rd8 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves