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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 Ng5 0
3 Ke8 0
4 Kd8 0
5 e6 0
6 Kc6 0
7 Kc7 0
8 Ba6 0
9 Na6 0
10 Bh6 0
11 Nc6 0
12 a6 0
13 Ke6 0
14 Kd6 0
15 a5 0
16 Rg8 0
17 Bb7 0
18 Bg7 0
19 e4 0