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

EGTB: win in 4 half-moves

# move score
1 Ka2 win in 3 half-moves
2 Ka4 win in 3 half-moves
3 Kb2 win in 3 half-moves
4 Kb4 win in 3 half-moves
5 Kb5 win in 3 half-moves
6 Kb6 win in 3 half-moves
7 Ra6 win in 3 half-moves
8 Rb8 win in 3 half-moves
9 Ka6 draw
10 Kb1 draw
11 Ra7 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Rf8 draw
16 Rg8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves