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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 e6 0
3 Bg7 0
4 Kc6 0
5 Kd6 0
6 Kc7 0
7 Kd8 0
8 Ke8 0
9 Rg8 0
10 Na6 0
11 Ng5 0
12 a6 0
13 Nc6 0
14 a5 0
15 Nf6 0
16 Bh6 0
17 Ke6 0
18 Bb7 0
19 Ba6 0
20 c4 0