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

Book: ∞ / 0

# move proof disproof
1 Ke6 0
2 e4 0
3 Bb7 0
4 Kd6 0
5 c5 0
6 Qf8 0
7 Qg8 0
8 Nc6 0
9 Ke8 0
10 a5 0
11 Kc6 0
12 Qe8 0
13 e6 0
14 Na6 0
15 Qh8 0
16 c6 0
17 a6 0
18 Ba6 0