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

EGTB: loss in 5 half-moves

# move score
1 Ka1 loss in 4 half-moves
2 Ka4 loss in 4 half-moves
3 K2b2 loss in 2 half-moves
4 K2b3 loss in 2 half-moves
5 K3b2 loss in 2 half-moves
6 K3b3 loss in 2 half-moves
7 Kb1 loss in 2 half-moves
8 Kb4 loss in 2 half-moves