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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kb8 win in 3 half-moves
4 Kf7 win in 3 half-moves
5 Kg7 win in 3 half-moves
6 Rb8 win in 3 half-moves
7 Kf6 win in 5 half-moves
8 Ka6 win in 27 half-moves
9 Kf5 draw
10 Kg5 draw
11 Kh5 draw
12 Kh6 draw
13 Kh7 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Rf8 draw
18 Rg8 draw
19 Rh8 loss in 2 half-moves