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

EGTB: draw

# move score
1 Kb5 draw
2 b5 loss in 4 half-moves
3 Ka5 loss in 4 half-moves
4 K6b7 loss in 3 half-moves
5 K7b7 loss in 3 half-moves
6 Ka8 loss in 3 half-moves
7 Kb8 loss in 3 half-moves
8 Nf7 loss in 2 half-moves
9 Ng6 loss in 2 half-moves