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

Book: ∞ / 0

# move proof disproof
1 g4 0
2 a5 0
3 c5 0
4 Ne5 0
5 Ndf6 0
6 Rb8 0
7 Ngf6 0
8 Nh6 0
9 Bh6 0
10 Nb6 0
11 Bg7 0
12 Ba6 0
13 e5 0
14 e6 0
15 Bb7 0
16 Kf7 0
17 c6 0
18 a6 0
19 Nb8 0
20 Nc5 0