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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 a6 0
3 Kg7 0
4 a5 0
5 e6 0
6 Ke6 0
7 Kg6 0
8 Kf8 0
9 Ke8 0
10 Nc6 0
11 Na6 0
12 h6 0
13 h5 0
14 f5 0
15 Nh6 0
16 Ba6 0
17 d6 0
18 d5 0
19 Bb7 0