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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 Ng5 0
3 Bb7 0
4 a5 0
5 e5 0
6 Na6 0
7 Kc7 0
8 Kc6 0
9 Kd6 0
10 f5 0
11 Nc6 0
12 e6 0
13 g6 0
14 Ba6 0
15 Ke6 0
16 f6 0
17 Rg8 0
18 g5 0
19 a6 0
20 Ke8 0
21 Kd8 0