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

EGTB: win in 4 half-moves

# move score
1 Ke7 win in 3 half-moves
2 g5 draw
3 Kc7 draw
4 Kc8 draw
5 Ke8 loss in 8 half-moves
6 Kd7 loss in 6 half-moves