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

EGTB: win in 4 half-moves

# move score
1 Nb5 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kc6 draw
5 Kd6 draw
6 Kd7 draw
7 Rb8 draw
8 Kc8 loss in 12 half-moves
9 Kb8 loss in 10 half-moves
10 Kd8 loss in 10 half-moves
11 Rc8 loss in 4 half-moves
12 Nc6 loss in 2 half-moves
13 Nc8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf8 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves