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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kd7 win in 3 half-moves
3 Re7 win in 3 half-moves
4 Kc8 win in 5 half-moves
5 Kf7 win in 5 half-moves
6 Kg7 win in 5 half-moves
7 Kg8 win in 5 half-moves
8 Kde7 draw
9 Kfe7 draw
10 Re4 draw
11 Re5 draw
12 Re6 draw
13 Re1 loss in 2 half-moves
14 Re2 loss in 2 half-moves
15 Re3 loss in 2 half-moves