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

Book: ∞ / 0

# move proof disproof
1 Nf6 0
2 Ng5 0
3 g5 0
4 e5 0
5 Rh8 0
6 h5 0
7 Nf8 0
8 a6 0
9 g6 0
10 e6 0
11 Rd8 0
12 Re8 0
13 Rg8 0
14 c5 0
15 a5 0
16 c6 0
17 Rab8 0
18 Rcb8 0
19 Rf8 0