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

EGTB: loss in 57 half-moves

# move score
1 Kb3 loss in 56 half-moves
2 Kc3 loss in 56 half-moves
3 Ka3 loss in 54 half-moves
4 Ka2 loss in 52 half-moves
5 Kc2 loss in 52 half-moves
6 Kb1 loss in 42 half-moves
7 Kc1 loss in 42 half-moves
8 Ka1 loss in 40 half-moves