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

EGTB: win in 4 half-moves

# move score
1 Re6 win in 3 half-moves
2 Rh7 win in 7 half-moves
3 Rh8 win in 7 half-moves
4 Ka7 draw
5 Kb7 draw
6 Kb8 draw
7 Kc6 draw
8 Kc7 draw
9 Kd7 draw
10 Ke5 draw
11 Ke6 draw
12 Ke7 draw
13 Rf6 draw
14 Rg6 draw
15 Rh1 draw
16 Rh5 draw
17 Kc5 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Rh2 loss in 2 half-moves
20 Rh3 loss in 2 half-moves
21 Rh4 loss in 2 half-moves