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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kc7 win in 3 half-moves
4 Ke7 win in 3 half-moves
5 Kb5 win in 5 half-moves
6 Kc8 win in 5 half-moves
7 Kd7 win in 11 half-moves
8 Rf7 win in 11 half-moves
9 Ke8 draw
10 Re8 draw
11 Rf3 draw
12 Rf4 draw
13 Rf5 draw
14 Rf6 draw
15 Rg8 draw
16 Rh8 draw
17 Ka4 loss in 2 half-moves
18 Kb4 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rf2 loss in 2 half-moves