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 Kb3 draw
3 Kb5 loss in 30 half-moves
4 Ka3 loss in 28 half-moves
5 Ka5 loss in 8 half-moves