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

Book: ∞ / 0

# move proof disproof
1 a6 0
2 Rb8 0
3 Nh7 0
4 g6 0
5 Rd8 0
6 Rc8 0
7 Rh7 0
8 Rg8 0
9 Ng6 0
10 Nd7 0
11 Re8 0
12 a5 0
13 g5 0
14 c5 0
15 h5 0
16 c6 0