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

Book: ∞ / 0

# move proof disproof
1 Nc2 0
2 g5 0
3 d5 0
4 Nf6 0
5 h6 0
6 Nb3 0
7 Nh6 0
8 e6 0
9 g6 0
10 Ra6 0
11 Ra7 0
12 Ke8 0
13 Bb7 0
14 Ke6 0
15 Kf6 0
16 Kg6 0
17 h5 0
18 e5 0
19 Ba6 0
20 Rb8 0
21 d6 0