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

Book: ∞ / 0

# move proof disproof
1 Nc6 0
2 Nf6 0
3 Ke8 0
4 Nh6 0
5 Kd8 0
6 f5 0
7 f6 0
8 Ba6 0
9 Ke6 0
10 Kd6 0
11 a6 0
12 Kc7 0
13 Kc6 0
14 a5 0
15 Na6 0
16 e6 0
17 Bg7 0
18 e5 0
19 Bh6 0
20 Bb7 0