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

EGTB: loss in 5 half-moves

# move score
1 Kc1 loss in 4 half-moves
2 Kaa2 loss in 2 half-moves
3 Kab2 loss in 2 half-moves
4 Kba2 loss in 2 half-moves
5 Kbb2 loss in 2 half-moves
6 Kc2 loss in 2 half-moves