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

EGTB: win in 4 half-moves

# move score
1 Ka2 win in 3 half-moves
2 Kc1 loss in 10 half-moves
3 Ka1 loss in 4 half-moves
4 Kb2 loss in 2 half-moves
5 Kc2 loss in 2 half-moves