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

Book: ∞ / 0

# move proof disproof
1 h3 0
2 Nc6 0
3 Ng6 0
4 Nf7 0
5 Ke6 0
6 Bh6 0
7 c6 0
8 a5 0
9 Na6 0
10 e6 0
11 Ke8 0
12 Kd8 0
13 Bg7 0
14 Kd6 0
15 c5 0
16 Bb7 0
17 a6 0
18 Ba6 0
19 Kc6 0