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

EGTB: loss in 3 half-moves

# move score
1 b4 loss in 2 half-moves
2 Kb6 loss in 2 half-moves
3 Kb8 loss in 2 half-moves
4 Kc6 loss in 2 half-moves
5 Kc8 loss in 2 half-moves
6 Nd5 loss in 2 half-moves
7 Ne6 loss in 2 half-moves
8 Ne8 loss in 2 half-moves
9 Ka6 loss in 1 half-moves
10 Ka7 loss in 1 half-moves
11 Ka8 loss in 1 half-moves
12 Na6 loss in 1 half-moves
13 Na8 loss in 1 half-moves