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

EGTB: win in 4 half-moves

# move score
1 Kc5 win in 3 half-moves
2 Kd3 win in 3 half-moves
3 Kd6 win in 3 half-moves
4 Kdd5 win in 3 half-moves
5 Re3 win in 3 half-moves
6 Kc3 draw
7 Kc4 draw
8 Ke3 draw
9 Re1 draw
10 Re2 draw
11 Ke6 loss in 2 half-moves
12 Ked5 loss in 2 half-moves
13 Kf4 loss in 2 half-moves
14 Kf5 loss in 2 half-moves
15 Kf6 loss in 2 half-moves
16 Rf4 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rh4 loss in 2 half-moves