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

Book: ∞ / 0

# move proof disproof
1 Rd8 0
2 e6 0
3 Re8 0
4 Rh8 0
5 c5 0
6 c6 0
7 Rf8 0
8 Rcb8 0
9 Rab8 0
10 a6 0
11 e5 0
12 g4 0
13 a5 0
14 Nf6 0
15 h4 0
16 Nf8 0
17 Rg8 0