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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 a6 0
3 Na6 0
4 Nd7 0
5 Nh6 0
6 Nf6 0
7 Bh6 0
8 Bg7 0
9 e5 0
10 e6 0
11 h5 0
12 h6 0