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

EGTB: win in 2 half-moves

# move score
1 Kb3 win in 1 half-moves
2 Kc3 win in 1 half-moves
3 Kd3 win in 1 half-moves
4 Kc1 loss in 36 half-moves
5 Kd1 loss in 36 half-moves
6 Kd2 loss in 36 half-moves
7 Kb2 loss in 34 half-moves
8 Kb1 loss in 32 half-moves