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

Book: ∞ / 0

# move proof disproof
1 e6 0
2 Kc7 0
3 f6 0
4 Kd8 0
5 e5 0
6 a5 0
7 Kd6 0
8 Bb7 0
9 c5 0
10 a6 0
11 Ke8 0
12 Nh6 0
13 f5 0
14 Ke6 0
15 Na6 0
16 Nf6 0
17 Ba6 0