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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Kg5 draw
3 Kg6 draw
4 Rf2 draw
5 Rf3 draw
6 Kf7 loss in 4 half-moves
7 Kg7 loss in 4 half-moves
8 Ke5 loss in 2 half-moves
9 Ke6 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Kf5 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf5 loss in 2 half-moves
17 Rg1 loss in 2 half-moves
18 Rh1 loss in 2 half-moves
19 Ra1 loss in 1 half-moves