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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kd2 win in 3 half-moves
4 Kd1 loss in 22 half-moves
5 Kb1 loss in 6 half-moves