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

Book: ∞ / 0

# move proof disproof
1 e5 0
2 Kc6 0
3 Kd6 0
4 Ke8 0
5 Kc7 0
6 Rd8 0
7 Re8 0
8 Rf8 0
9 Na6 0
10 Nc6 0
11 Kd8 0
12 Nf8 0
13 Ke7 0
14 Rg8 0
15 Nf6 0
16 a5 0
17 Ba6 0
18 Bb7 0
19 a6 0