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

EGTB: win in 4 half-moves

# move score
1 Nb4 win in 3 half-moves
2 Be1 loss in 4 half-moves
3 Bb4 loss in 2 half-moves
4 Bb6 loss in 2 half-moves
5 Bc3 loss in 2 half-moves
6 Bd2 loss in 2 half-moves
7 Bd8 loss in 2 half-moves
8 Nc1 loss in 2 half-moves
9 Nc3 loss in 2 half-moves
10 Bc7 loss in 1 half-moves