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 draw
3 Kg8 draw
4 Kh7 draw
5 Kh8 draw
6 Ra8 draw
7 Rf6 draw
8 Rf7 draw
9 Rg8 draw
10 Rh8 draw
11 Kf6 loss in 4 half-moves
12 Kg6 loss in 4 half-moves
13 Kh6 loss in 4 half-moves
14 Rf4 loss in 4 half-moves
15 Rf5 loss in 4 half-moves
16 Rc8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rf3 loss in 2 half-moves