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

EGTB: win in 4 half-moves

# move score
1 Ka4 win in 3 half-moves
2 Ka5 win in 3 half-moves
3 Ka6 win in 3 half-moves
4 Kc4 win in 3 half-moves
5 Kc5 win in 3 half-moves
6 Kc6 win in 3 half-moves
7 Ra7 win in 3 half-moves
8 Rc7 win in 3 half-moves
9 Kb6 win in 5 half-moves
10 Kb4 draw
11 Rb8 draw
12 Rd7 draw
13 Re7 draw
14 Rb6 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rh7 loss in 2 half-moves