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

EGTB: win in 4 half-moves

# move score
1 Ke1 win in 3 half-moves
2 Ke2 win in 3 half-moves
3 Kc3 loss in 2 half-moves
4 Kd3 loss in 2 half-moves
5 Ke3 loss in 2 half-moves
6 Kc1 loss in 1 half-moves
7 Kc2 loss in 1 half-moves
8 Kd1 loss in 1 half-moves