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

EGTB: win in 4 half-moves

# move score
1 Kg4 win in 3 half-moves
2 Rf4 win in 3 half-moves
3 Rf5 win in 3 half-moves
4 Kg5 draw
5 Kh5 draw
6 Ra8 draw
7 Rb8 draw
8 Rc8 draw
9 Rd8 draw
10 Re8 draw
11 Rf6 draw
12 Rf7 draw
13 Rh8 draw
14 Kg3 loss in 2 half-moves
15 Kh3 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rf2 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rg8 loss in 2 half-moves