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

EGTB: win in 10 half-moves

# move score
1 Rf4 win in 9 half-moves
2 Kd4 draw
3 Kd5 draw
4 Ke5 draw
5 Kf4 draw
6 Kf5 draw
7 Rg4 draw
8 Rh5 draw
9 Rh6 draw
10 Rh7 draw
11 Rh8 draw
12 Kd3 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Kf3 loss in 2 half-moves
15 Rh1 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Rh3 loss in 2 half-moves