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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 h6 0
3 Kf6 0
4 d6 0
5 d5 0
6 a5 0
7 Qb6 0
8 g5 0
9 Nh6 0
10 a6 0
11 h5 0
12 Qc7 0
13 Bb7 0
14 e6 0
15 Ba6 0
16 Qa5 0
17 Rb8 0
18 Kh6 0
19 Qe8 0
20 Kf7 0