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

EGTB: win in 4 half-moves

# move score
1 Kc1 win in 3 half-moves
2 Kd1 win in 3 half-moves
3 Kd3 win in 3 half-moves
4 Kb2 win in 5 half-moves
5 Kb3 win in 5 half-moves
6 Kc3 win in 5 half-moves
7 Rb2 win in 5 half-moves
8 Ra1 win in 19 half-moves
9 Kc2 draw
10 Ke1 draw
11 Ke2 draw
12 Ke3 draw
13 Ka4 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Rc2 loss in 2 half-moves