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

EGTB: win in 2 half-moves

# move score
1 b5 win in 1 half-moves
2 Kc7 loss in 2 half-moves
3 Kc8 loss in 2 half-moves
4 Ke7 loss in 2 half-moves
5 Ke8 loss in 2 half-moves
6 Kd7 loss in 1 half-moves
7 Na1 loss in 1 half-moves
8 Na5 loss in 1 half-moves
9 Nc1 loss in 1 half-moves
10 Nc5 loss in 1 half-moves
11 Nd2 loss in 1 half-moves
12 Nd4 loss in 1 half-moves