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

EGTB: win in 4 half-moves

# move score
1 Kf5 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Rf8 win in 3 half-moves
4 Rh4 win in 5 half-moves
5 Ke3 draw
6 Ke5 draw
7 Kf3 draw
8 Kf4 draw
9 Re8 draw
10 Rg8 draw
11 Rh1 draw
12 Rh7 draw
13 Kd3 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rh2 loss in 2 half-moves
20 Rh3 loss in 2 half-moves
21 Rh5 loss in 2 half-moves
22 Rh6 loss in 2 half-moves