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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 Qe8 0
3 Qb6 0
4 Qc7 0
5 e5 0
6 Ba6 0
7 Nh6 0
8 h5 0
9 f5 0
10 d6 0
11 Bh6 0
12 d5 0
13 e6 0
14 Bb7 0
15 h6 0
16 Qa5 0
17 Rb8 0
18 Bg7 0
19 a6 0