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 Ka5 win in 5 half-moves
3 Kb4 draw
4 Kb3 loss in 22 half-moves
5 Ka3 loss in 8 half-moves