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

Book: ∞ / 0

# move proof disproof
1 a4 0
2 Bg7 0
3 Bb7 0
4 Qb6 0
5 d6 0
6 Na6 0
7 Ba6 0
8 Ra7 0
9 e5 0
10 h6 0
11 Ra6 0
12 Kf7 0
13 d2 0
14 d5 0
15 Qc7 0
16 e6 0
17 Bh6 0
18 Nc6 0
19 Rg8 0