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

Book: ∞ / 0

# move proof disproof
1 Re8 0
2 c6 0
3 h6 0
4 Ng6 0
5 Nd7 0
6 Rd8 0
7 h5 0
8 g5 0
9 g6 0
10 Rc8 0
11 Rg8 0
12 a6 0
13 a5 0
14 Rb8 0
15 c5 0