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

Book: ∞ / 0

# move proof disproof
1 Nc6 0
2 Nf6 0
3 Na6 0
4 Nd7 0
5 a6 0
6 Re8 0
7 Rf8 0
8 a5 0
9 Nf8 0
10 Rg8 0
11 Rd8 0
12 Rc8 0