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

Book: ∞ / 0

# move proof disproof
1 c4 0
2 Re8 0
3 a5 0
4 Nf8 0
5 Ng5 0
6 Rd8 0
7 Nf6 0
8 Rf8 0
9 Ba6 0
10 Nc6 0
11 Na6 0
12 e5 0
13 e6 0
14 Rg8 0
15 Ke6 0
16 Kc6 0
17 Kd6 0
18 Kc7 0
19 Kd8 0
20 Ke8 0
21 Bb7 0
22 a6 0