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

EGTB: win in 20 half-moves

# move score
1 Kb8 win in 19 half-moves
2 Kd6 win in 19 half-moves
3 Kb7 loss in 4 half-moves
4 Kc6 loss in 4 half-moves
5 Na8 loss in 4 half-moves
6 Kcd8 loss in 3 half-moves
7 Kdd8 loss in 3 half-moves
8 b5 loss in 2 half-moves
9 Ke6 loss in 2 half-moves
10 Ke7 loss in 2 half-moves
11 Ke8 loss in 2 half-moves
12 Na6 loss in 2 half-moves
13 Nb5 loss in 2 half-moves
14 Nd5 loss in 2 half-moves
15 Ne6 loss in 2 half-moves
16 Ne8 loss in 2 half-moves