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

EGTB: win in 2 half-moves

# move score
1 Ke7 win in 1 half-moves
2 Kf8 win in 1 half-moves
3 Kd7 loss in 24 half-moves
4 Kd8 loss in 20 half-moves
5 Kf7 loss in 2 half-moves