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

EGTB: win in 2 half-moves

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