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

EGTB: win in 20 half-moves

# move score
1 b5 win in 19 half-moves
2 Kab7 win in 21 half-moves
3 Ka8 win in 23 half-moves
4 Nb8 win in 27 half-moves
5 Kc7 loss in 5 half-moves
6 Kab8 loss in 4 half-moves
7 Kcb7 loss in 3 half-moves
8 Kcb8 loss in 3 half-moves
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Nb4 loss in 2 half-moves
12 Nc5 loss in 2 half-moves
13 Nc7 loss in 2 half-moves