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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 g5 0
3 Nf8 0
4 h5 0
5 Ng5 0
6 Rh8 0
7 a6 0
8 e6 0
9 Red8 0
10 Rec8 0
11 Rg8 0
12 g6 0
13 e5 0
14 Rad8 0
15 c5 0
16 Rac8 0
17 a5 0
18 c6 0
19 Rab8 0
20 Reb8 0
21 Rf8 0