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 Rf4 win in 1 half-moves
3 Kf7 loss in 2 half-moves
4 Kg6 loss in 2 half-moves
5 Kgg7 loss in 2 half-moves
6 Kgh8 loss in 2 half-moves
7 Kh6 loss in 2 half-moves
8 Khg7 loss in 2 half-moves
9 Khh8 loss in 2 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 Rf1 loss in 2 half-moves
15 Rf2 loss in 2 half-moves
16 Rf3 loss in 2 half-moves
17 Rf5 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rf7 loss in 2 half-moves