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 Kf1 draw
3 Kg8 draw
4 Kh1 draw
5 Ra8 draw
6 Rc8 draw
7 Rd8 draw
8 Re8 draw
9 Rf1 draw
10 Rf6 draw
11 Rf7 draw
12 Kf2 loss in 2 half-moves
13 Kg2 loss in 2 half-moves
14 Kg7 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Kh7 loss in 2 half-moves
17 Rf2 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rg8 loss in 2 half-moves