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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 draw
3 Kc4 draw
4 Kd4 draw
5 Kd5 draw
6 Kd6 draw
7 Kb6 loss in 58 half-moves
8 Kc6 loss in 58 half-moves