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 Rf3 win in 1 half-moves
3 Rf4 win in 1 half-moves
4 Rf5 win in 1 half-moves
5 Kf1 loss in 2 half-moves
6 Kg3 loss in 2 half-moves
7 Kgg2 loss in 2 half-moves
8 Kgh1 loss in 2 half-moves
9 Kh3 loss in 2 half-moves
10 Khg2 loss in 2 half-moves
11 Khh1 loss in 2 half-moves
12 Ra8 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rf6 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves
21 Kf2 loss in 1 half-moves
22 Rf2 loss in 1 half-moves