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

Book: ∞ / 0

# move proof disproof
1 Nf5 0
2 Ng4 0
3 g5 0
4 Ng8 0
5 e5 0
6 f5 0
7 e6 0
8 a5 0
9 a6 0
10 f6 0
11 Rg8 0
12 g6 0