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

EGTB: win in 4 half-moves

# move score
1 Na6 win in 3 half-moves
2 Nd7 draw
3 f8=K loss in 4 half-moves
4 f8=N loss in 4 half-moves
5 Nb7 loss in 4 half-moves
6 Rc8 loss in 4 half-moves
7 f8=B loss in 2 half-moves
8 f8=Q loss in 2 half-moves
9 f8=R loss in 2 half-moves
10 Na4 loss in 2 half-moves
11 Nb3 loss in 2 half-moves
12 Nd3 loss in 2 half-moves
13 Ne4 loss in 2 half-moves
14 Ne6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re7 loss in 2 half-moves