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

Book: ∞ / 0

# move proof disproof
1 c5 0
2 Bh6 0
3 e6 0
4 e5 0
5 a5 0
6 Rg8 0
7 Ba6 0
8 f5 0
9 Ng5 0
10 Bg7 0
11 Nf6 0
12 Ke6 0
13 Bb7 0
14 Na6 0
15 f6 0
16 a6 0
17 Ke8 0
18 Kd8 0
19 Kc7 0
20 Kd6 0