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

EGTB: win in 4 half-moves

# move score
1 K4b3 win in 3 half-moves
2 K4b4 win in 3 half-moves
3 Kb5 win in 3 half-moves
4 Ka2 draw
5 Ka5 draw
6 K3b3 loss in 2 half-moves
7 K3b4 loss in 2 half-moves
8 Kb2 loss in 2 half-moves