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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Bg7 0
3 h5 0
4 Na6 0
5 a5 0
6 c5 0
7 Ke6 0
8 Ke8 0
9 Kd8 0
10 Kc7 0
11 Kd6 0
12 Bb7 0
13 Nf6 0
14 e6 0
15 e5 0
16 Ba6 0