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

Book: ∞ / 0

# move proof disproof
1 a5 0
2 e3 0
3 Rf8 0
4 c6 0
5 a6 0
6 Rd8 0
7 Bb7 0
8 Nf6 0
9 Ba6 0
10 Re8 0
11 Ke8 0
12 Kd8 0
13 Ke7 0
14 Kd6 0
15 Kc6 0
16 Ng5 0
17 Ke6 0
18 Nf8 0
19 Rg8 0
20 Na6 0
21 Nc6 0
22 c5 0