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

Book: ∞ / 0

# move proof disproof
1 Qc7 0
2 Nh6 0
3 Ngf6 0
4 f5 0
5 a6 0
6 Nf8 0
7 Qb6 0
8 f6 0
9 Kf8 0
10 e5 0
11 a5 0
12 Ndf6 0
13 e6 0
14 Nb6 0
15 Ne5 0
16 Rb8 0
17 Qa5 0
18 Bb7 0
19 Nb8 0
20 Ba6 0