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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kc7 draw
4 Kc8 loss in 58 half-moves
5 Ka8 loss in 50 half-moves