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

Book: ∞ / 0

# move proof disproof
1 b3 0
2 Ke6 0
3 Kc6 0
4 Ke8 0
5 Nf6 0
6 g5 0
7 c6 0
8 Rh7 0
9 b5 0
10 b6 0
11 c5 0
12 Nc6 0
13 Qe8 0
14 g6 0
15 e5 0
16 h5 0
17 Na6 0
18 Kd6 0
19 e6 0