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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 Kc6 draw
3 Kc7 draw
4 Kd6 draw
5 Ke6 draw
6 Ke7 draw
7 Rd8 draw
8 Rf3 draw
9 Rf6 draw
10 Rg8 draw
11 Rh8 draw
12 Ke8 loss in 6 half-moves
13 Kc8 loss in 4 half-moves
14 Kd8 loss in 4 half-moves
15 Rf7 loss in 4 half-moves
16 Rb8 loss in 2 half-moves
17 Rc8 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 Rf4 loss in 2 half-moves
22 Rf5 loss in 2 half-moves