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

Book: ∞ / 0

# move proof disproof
1 c5 0
2 Nb7 0
3 a6 0
4 Bh6 0
5 Kd6 0
6 Ke6 0
7 a5 0
8 Rg8 0
9 Na6 0
10 h5 0
11 e6 0
12 Ne6 0
13 Ba6 0
14 Nf7 0
15 Kc7 0
16 Ke8 0
17 h6 0
18 Bb7 0
19 e5 0
20 Bg7 0