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

Book: ∞ / 0

# move proof disproof
1 d5 0
2 Ra7 0
3 Rg8 0
4 h6 0
5 Ra6 0
6 a4 0
7 d6 0
8 Rb8 0
9 Bb7 0
10 g5 0
11 g6 0
12 Re8 0
13 Rf8 0
14 Ba6 0
15 Rd8 0
16 h5 0