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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Nf7 0
3 c5 0
4 Ng4 0
5 Ng8 0
6 Kc6 0
7 Ba6 0
8 Rb8 0
9 a5 0
10 c6 0
11 Bb7 0
12 Nf5 0
13 Ke6 0
14 Ke8 0
15 Kd6 0
16 e6 0
17 Qe8 0
18 Bg7 0