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

Book: ∞ / 0

# move proof disproof
1 c5 0
2 Nc6 0
3 c6 0
4 Nf6 0
5 Bb7 0
6 Kc6 0
7 Bg7 0
8 Ke8 0
9 Ke6 0
10 e6 0
11 e5 0
12 Bh6 0
13 Qe8 0
14 Ra7 0
15 Rg8 0
16 g4 0
17 Kd6 0