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

EGTB: win in 4 half-moves

# move score
1 Kc1 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kd1 win in 5 half-moves
4 Kd3 loss in 58 half-moves
5 Ke2 loss in 52 half-moves
6 Ke3 loss in 52 half-moves
7 Ke1 loss in 50 half-moves
8 Kc3 loss in 2 half-moves