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

Book: ∞ / 0

# move proof disproof
1 c6 0
2 g4 0
3 e6 0
4 e5 0
5 a5 0
6 Na6 0
7 Nd7 0
8 h5 0
9 Rh7 0
10 Bg7 0
11 Nf6 0
12 Nc6 0
13 a6 0