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

EGTB: win in 4 half-moves

# move score
1 Ka3 win in 3 half-moves
2 Ka2 draw
3 Kc1 draw
4 Kc2 draw
5 Ka1 loss in 8 half-moves
6 Kb1 loss in 6 half-moves
7 Kb3 loss in 2 half-moves
8 Kc3 loss in 2 half-moves