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

EGTB: win in 10 half-moves

# move score
1 Kb3 win in 9 half-moves
2 Kb4 win in 9 half-moves
3 Kb5 win in 9 half-moves
4 Ka3 win in 11 half-moves
5 Ka5 loss in 20 half-moves