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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 a5 0
3 Na6 0
4 f5 0
5 Nc6 0
6 Bg7 0
7 h5 0
8 Kc6 0
9 Kc7 0
10 Kd8 0
11 Ke8 0
12 e6 0
13 a6 0
14 Ke6 0
15 Ba6 0
16 f6 0
17 Bb7 0
18 Kd6 0