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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 g4 0
3 Bg7 0
4 Bf8 0
5 Na6 0
6 Nc6 0
7 c5 0
8 Kd6 0
9 Bb7 0
10 a5 0
11 Qf8 0
12 Ba6 0
13 Qe8 0
14 a6 0
15 c6 0
16 Ke8 0
17 e6 0
18 Ke6 0
19 e5 0
20 Kc6 0