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 Kd4 draw
5 Kd5 draw
6 Kd3 loss in 58 half-moves
7 Kc3 loss in 54 half-moves
8 Kb3 loss in 50 half-moves