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

Book: ∞ / 0

# move proof disproof
1 c3 0
2 b5 0
3 f5 0
4 Bb7 0
5 h5 0
6 Na6 0
7 e5 0
8 d5 0
9 Nc6 0
10 e6 0
11 g6 0
12 Rh7 0
13 Kf7 0
14 d6 0
15 g5 0
16 Qc7 0
17 Ba6 0