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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Rh1 win in 3 half-moves
3 Rh4 win in 3 half-moves
4 Ka6 win in 5 half-moves
5 Ka8 win in 5 half-moves
6 Kb7 win in 5 half-moves
7 Kb8 win in 5 half-moves
8 Ra8 win in 5 half-moves
9 Rb8 win in 5 half-moves
10 Rh7 win in 5 half-moves
11 Kb6 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg8 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Rh3 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Rh6 loss in 2 half-moves