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

Book: ∞ / 0

# move proof disproof
1 Rb8 0
2 c5 0
3 Rd8 0
4 Nh7 0
5 g6 0
6 a5 0
7 e5 0
8 Re8 0
9 Ra8 0
10 a6 0
11 c6 0
12 Rh8 0
13 g5 0
14 h5 0
15 Nd7 0
16 Ng6 0