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

Book: ∞ / 0

# move proof disproof
1 h3 0
2 a5 0
3 Ng5 0
4 Rad8 0
5 Nf8 0
6 Rec8 0
7 c5 0
8 g5 0
9 Rf8 0
10 Rg8 0
11 Rh8 0
12 Rac8 0
13 Red8 0
14 a6 0
15 g6 0
16 c6 0
17 e6 0
18 Rab8 0
19 Reb8 0
20 Nf6 0