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

Book: ∞ / 0

# move proof disproof
1 a4 0
2 h6 0
3 Ke8 0
4 h5 0
5 Ra7 0
6 c6 0
7 Ra6 0
8 Nh6 0
9 Qe8 0
10 Bg7 0
11 Ba6 0
12 Nf6 0
13 Kc6 0
14 Kd6 0
15 Ke6 0
16 Bh6 0
17 e6 0
18 Na6 0
19 g5 0
20 e5 0
21 f6 0
22 c5 0
23 f5 0
24 Nc6 0
25 Bb7 0