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

EGTB: win in 4 half-moves

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