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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb4 draw
3 Kc5 draw
4 Kd5 draw
5 Kd4 loss in 52 half-moves
6 Kd3 loss in 50 half-moves
7 Kb3 loss in 42 half-moves
8 Kc3 loss in 42 half-moves