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

EGTB: win in 4 half-moves

# move score
1 Kc2 win in 3 half-moves
2 Kc3 win in 3 half-moves
3 Ke2 win in 3 half-moves
4 Ke3 win in 3 half-moves
5 Rc1 win in 3 half-moves
6 Kd3 win in 7 half-moves
7 Rb1 win in 7 half-moves
8 Kc1 draw
9 Ke1 draw
10 Ra1 draw
11 Re1 draw
12 Rg1 draw
13 Rh1 draw
14 Rf1 loss in 2 half-moves