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

EGTB: win in 2 half-moves

# move score
1 Kc8 win in 1 half-moves
2 Ke8 win in 1 half-moves
3 Kc7 loss in 54 half-moves
4 Kd7 loss in 54 half-moves
5 Ke7 loss in 54 half-moves